I want to keep studying English in a well-balanced way. I want to keep studying English in a well-balanced way.

sounds better this way

I want to keep studying English in a well-balanced way. I want to keep studying English in a well-balanced way.

I was taught how to study it bethe language by many good teachers, but I couldn’t keep doing it. I was taught how to study the language by many good teachers, but I couldn’t keep doing it.

1) Saying "the language" sounds better than "it", especially since you say "it" again at the end of the sentence. In English writing, we try not to be so repetitive. 2) For what you want to say, the right word is "by" not "be" 3) Put a comma before the word "but" anytime there's 2 different clauses (clauses means ideas) in your sentence. First clause = you were taught to study. Second clause = you couldn't keep doing it.

I was taught how to study it bey many good teachers but I couldn’t keep doing it. I was taught how to study it by many good teachers but I couldn’t keep doing it.

My ideal routine is waking up early in the morning to run or walk, and then studying English for as long as possible. My ideal routine is waking up early in the morning to run or walk, and then studying English for as long as possible.

My ideal routine is waking up early in the morning to run or walk and then studying English for as long as possible. My ideal routine is waking up early in the morning to run or walk and then studying English for as long as possible.

Every night, I regret my day.... Every night, I regret my day...

In English, we only use 3 dots "..." :) Example: I don't know what I'm going to do...

I think I hasn’ven't decided to do my routine regularly in this life. I think I haven't decided to do my routine regularly.

I don't think I hasn’tve decided to do my routine regularly in this lifbefore. I don't think I have decided to do my routine regularly before.

I have to sort out what I learned out and decide to what and /how much I want to improve each skill( (reading, writing, listening and speaking), and also set my goals in detail. I have to sort out what I learned and decide to what/how much I want to improve each skill (reading, writing, listening and speaking), and also set my goals in detail.

You said "and" a lot in this sentence, so when you said "what and how much," I put a slash instead of the and. You can do this sometimes in the English language, but not all the time. https://grammar.yourdictionary.com/grammar/style-and-usage/when-to-use-a-slash-in-writing.html

I have to sort out what I have learned out and decide to what and how much I want to improve in each skill( (reading, writing, listening and speaking) and also set my goasl in detail. I have to sort out what I have learned and decide what and how much I want to improve in each skill (reading, writing, listening and speaking) and also set my goasl in detail.