The fFarm's house

Titles follow special capitalization rules

Our house was made of stones, and in some parts of the walls, we could see holes.

Some part of the wall = one specific part of one wall
Some parts of the walls = this is more open to saying it can be many parts of the house (walls, plural) and many holes

Sometimes, in winter, the temperature of the room was extremely rudeharsh.

Rude is a faux ami. In English, rude = impoli
The French "rude" best translates to hard or harsh

But we had a massive fireplace and a wood stove in the same pieceroom.

Pièce (dans une maison) does not mean "piece" in English. In English, a piece is like "une partie" (can be context dependent)
Houses have "rooms"

This pieceroom was a mix betweencombination of the kitchen, the salliving roonm and the dining room.

"Combination" is slightly better than "mix" since it means all unique parts form a whole. The word "mix" tends to mean each part is homogenized together.
Salon en français = living room in English. The word "saloon" exists, but it describes an old-timey bar in the cowboy days.

Most of time, when it' was bitter cold, I stayed stuck onglued to the wood stove, with a (comic / graphic novel) (like Super Picsou Geant, Gaston Lagaffe, Tintin...) and a hot chocolate.

Bande dessinées are better described as "graphic novels." Comic books tend to describe something a little different, they are more like thin magazines and most widely known for being about superheroes (Batman, Superman...)

And my dog sat oin my kneeslap.

Sur mes genoux = in my lap.

Your "lap" is what we call the top of your legs/thighs when you are sitting down.

Only one of my dogs, because we had almost 10 dogs.

"One of my [noun]s" - always one of plural things

My stepfather was a sheepherd and my mother a goater (I don't know if it's the right word, but she had goats)herd.

And only one of them could be enterwas allowed to come in the house.

When speaking about rights/permission: "allowed to"

Because she was my mother's dog, not really a sheep's dog.

But in reality, she was the mosta terrifierying dog for the others animals !

Usually you don't need a modifier for "terrifying" because it's already a very strong word. But if you were speaking about many terrifying things together, you might use "most terrifying." E.g., "he was the most terrifying out of all the serial killers."

She had a very bad temperament, and she liked to bite feet.

Sometimes, lambs or kids stayed with us in the house, when they didn't have a gwere in poodr health.

Totally correct to use "kids" for baby goats, just a note that if you didn't have the context of "goats" already, the default meaning for "kids" is human children

We also had a cat, Simon, who is already in still alifve.

He helped us with thea lot ofwith mice, because, with all the holes in the walls, ,they could be enter easily.

Again I would say "walls" unless you really mean there were holes in only one wall

This farm's house was really isolated, and she was not far from a big forest and a large lake.

I passedspent a lot of time here, with my dog and cat (and sometimes a sheep who named Noemie.).

The fFarm's house

Our house was made of stones, and in some parts of the wall, we could see holes.

Sometimes, in winter, the temperature of the room was extremely rudeharsh.

"Rude" and "harsh" both describe a person's behavior:

"That was a rude comment. It was uncalled for."
"You're being too harsh. His mistake wasn't that bad; you don't need to criticize so much."

The environment can't be rude, but it can be harsh in a metaphorical way:

"Be careful on your drive. The weather looks harsh this weekend."

But wWe had a massive fireplace and a wood stove in the same pieceroom.

"In the same piece" would mean that it's the same appliance: you have one object that is a fireplace and also a wood stove. I think you're saying that they're two separate objects, but they're close together. Is that right?

In school, we're taught not to start sentences with "but" like this. We often talk this way, but in writing, "but" starts a dependent clause, which means it can't be a sentence by itself. The easiest fix is to connect it with the previous sentence: "Sometimes, in winter, the temperature of the room was extremely harsh, but we had a massive fireplace and a wood stove in the same room."

This pieceroom was a mix between the kitchen, the saloon and the dining room.

Most of time, when it' was bitterly cold, I stayed stuck onby the wood stove, with a comic (like Super Picsou Geant, Gaston Lagaffe, Tintin...) and a hot chocolate.

"Stayed stuck on the wood stove" sounds to me like you were sitting on top of the stove. Surely it's too hot, and you would get burned? My assumption is that you were close to the stove but not physically touching it.

Some other options:
"I stayed put in front of the wood stove"
"I sat myself down in front of the wood stove"

And my dog sat on my knees.

dependent clause; combine with previous sentence

Only one of my dogs, because we had almost 10 dogs.

My stepfather was a sheepherd and my mother a goater (I don't know if it's the right word, but she had goats)herd.

And oOnly one of themse dogs could be enter in the house.

Because she was my mother's dog, not really a sheep's dog.

dependent clause; combine with previous sentence

If you use a possessive pronoun, mother or father is lowercase, because it's a regular noun.

If you omit a possessive pronoun, Mother or Father is capitalized, because then it's standing in for someone's name.

She was a Jack Russell Terrier.

But in reality,... but she was the most terrifierying dog for the others animals !

She had a very bad temperament, and she liked to bite feet.

Sometimes, when lambs or kids stayed with us in the house, when they didn't have a good healthwere having health problems, they would stay with us in the house.

We also had a cat, Simon, who is already in life.

What does "already in life" mean?

HeSimon helped us with the lot of mice, because,our mice problem: with all the holes in the wall ,theys, mice could be enter easily.

This farm's house was really isolated, and sheit was not far from a big forest and a large lake.

I passedspent a lot of time here, with my dog and cat (and sometimes a sheep who named Noemie.).

Our house was made of stones, and in some part of the walls, we could see holes.

Sometimes, in winter, the temperature of the room was extremely rude.

My stepfather was a sheeper and my mother a goater(see the choices down below) (I don't know if it's the right word, but she had goats).

you could say goatherd/goat keeper/goat farmer

And only one of them could be enter inallowed inside the house.

Because she was the mother's of the dogs, not really a sheep'spherd dog.

But in reality, she was the most terrifierying dog for the others animals !

She had a very bad temperament, and she liked to bite feet.

Sometimes, lambs or kids stayed with us in the house, when they didn't haveweren't in a good health.

We also had a cat, Simon, who is already in still alifve.

He helped us a lot with the lot of mice, b. Because, with all the holes in the wall ,they could be enter easily.

I passed a lot of time here, with my dog and cat (and sometimes a sheep whose named is Noemie.).