My to-do list for today is:

There's no need for "is" because you've already used a colon (:)

Bibele reading...

The correct spelling is "Bible reading", and there are three dots in an ellipsis (...)

Then, I turn on some music!

A comma is used after "then" to separate the two clauses.

Then, I do some morning gymnastics..

WThichs leeads me to theake a shower that I can take afterwards because I'm sweating.

Then, I have to wash the dishes and eat some breakfast.

Try some different words instead of "then": afterwards, finally, next, subsequently, etc.

Then, I need to remember to give my husband a hug.

And then I make early dinner as usual (about 3'o o'clock).

Typically "and" isn't used at the beginning of a sentence but it can be a stylistic choice

Eating itI eat dinner abroutnd 4 pm.

Then i, I sit down to play some games on my phone.

And at about 6 pm, I watch the Korean drama that I'm watching at the moment.

When we get to 9 pm.,

This is a sentence fragment, meaning that the sentence is incomplete.

It's time for bed..

Combine this with the sentence before it, "When we get to 9 pm, it is time for bed."

I wait for my husband to brush his teeth first.. A and then it's my time for themy evening routine:

Bringing my duvet, water bottle and phone to the bed, gousing to the toilet, brushing my teeth, listening to my husband reading the daily scripture, stretching my legs to avoid kcramps when sleeping, talooking a fresh moment inout the window, reading a story from our Bibele story book aloud before my husband falls a sleep, braiding my long hair to avoid it becoming a big mess when sleepingtangles, training my arm muscles with weights, washiping the dining table with a cloth, taking another fresh breath of air from outside the window, and taking a moment to [fall back down.]

I'm not sure what you mean by "taking a fresh moment in the window" and "taking a moment to fall back down". Also, we say "wiping the table" or "cleaning the table", not "washing the table".

While it's not wrong, it's a weird/ awkward stylistic choice to have such a long list. Especially since you split the tasks into separate sentences in the first paragraph.

Then I can finally lay in bed on our futon, put my phone in the charger and check off the last of my to-do list ion hHabitica, takedo 10-15 sit-ups to do something about that annoying belly and I laylie down.. I talk a bit with Jehova sayto Jehova for a bit, giving thanks for all the good things I can think of.

It is also weird to split this into another sentence if everything else was already put behind the colon (:).

We "give thanks" instead of "say thanks"