Ruoutine

I wanna make mya routine for a better life.

"My", and other possessive pronouns like it, carry this feeling like they're talking about something that already exists and is specific. "My routine" is a routine that you are already doing. But this isn't the routine you are already doing that you want to make (it feels strange to say you want to make something that already exists), so using "a" is more natural.

I know it isn't easy, but it's for that reason, that I want to managedo it.

The routine will be helpful, especially whenever I feel stressed andor depressed, because these habits will save me in the deep wholelong run.

"deep whole" is an odd phrase that I've never heard before. If we're talking about how a thing or action will affect an extended period of time going forwards, I would usually say "in the long run".

Getting up early, reading a book for 10 minutes, and exercising for 30 minutes is one of my routines that I've made.

So, reading a book every day has become my routine I think, because I've read around 10 books every year since 2022.

For past actions that are very recent, I'll use "I've" instead of "I". You've been reading books in the past, and you still are in the present, so "I've" feels better in this context.
You could also say: "I've been reading around 10 books..." (this is called "past progressive" tense).

I've also realized how useful reading a book is afternow that I havinge this habit, (that's because)? I want to make my day (conductively)?.

I'm confused by the word "conductively" here. Did you mean to say "productive"?

Also, "that's because" is also confusing me, and I'm wondering if I've misread this whole sentence.
"that's because" implies that the entire clause "I've also realized. . .now that I have this habit" is BECAUSE "I want to make my day...", which doesn't make sense. Do you instead mean something like: "AND I'M DOING ALL OF THIS because I want to..."?

Sometimes, "this" or "that" take the meaning of the last clause, instead of an object. For example:
"We're not making a lot of money. This is because not many people need what we are selling."
Person A: "It's so dark in here!" Person B: "That's because the lights are broken."

Cheer up my life!

"Cheer up my life" is not a phrase I've ever heard used as a signoff. It sounds like a very specific demand. A more common signoff using the word "cheer" would be, well, "Cheers!"

Ruotine

Routine

I wanna make my routine for a better life.

Technically this is correct. But, how about: I wanna / want to create a routine to improve my life.

I know it isn'twon’t be easy, but for that’s one reason, I want to manage itgive it a try.

TheHaving a routine will be helpful, especially whenever I feel stressed andor depressed, because these habits will save me in the. The routine will save me from falling into a deep whole.

Getting up early, reading a book for 10 minutes, and exercising for 30 minutes is one of my routines that I madare some parts of my routine.

So, rReading a books every day has become part of my routine I think, because I’ve read around 10 books every year since 2022.

I als’ve come to realize how useful reading a book iss are after having this habit, that's becausefalling into this habit. I wanted to make my day conproductively.

I’m not sure what you mean by ‘conductively’ here. I think you meant productive. We often use ‘conductive’ + ‘day’ talking about ‘how’ you have a day. Ex: I conduct my days with thoughts about the future. This is another way we might use conduct: I conduct my business in the morning.