English has been a part of my routine since childhood, but. So what do I like the least about learning it.?

The second half of your sentence is a question, the format is interrogative. Thus, it's better to separate it into a full sentence with the proper punctuation.

Personally, I think that, sometimes, teachers focus too much on preparing students for exams.

"Personally" is extraneous, by saying "I think" you're already showing that it is coming from your point of view. Commas are added for better flow and more clarity.

In my view, this is a mistake, as i. It can wear students out and diminish their motivation to learn.

Great sentence, though separating it to two smaller ones increases the readability.

In my case, this is what happens to me with my teachers, especially my particularThis happened in my classes. They were too focused on Cambridge Exams, so I got tired of themlearning.

This is a very long sentence with a lot of unnecessary wording.

Firstly, you have three sentences in a row that begin with unnecessary qualifiers stating this is your opinion. You also have an too many words saying that you experienced what you just mentioned. In this sentence saying "...happens to ME" and "MY teachers" and "MY particular classes" is unnecessary.

The reader can gather that you're speaking about your experience quickly.

Furthermore the present tense "happens" indicates this is an ongoing occurrence, in other words you are still in school. The second half of your sentence indicates that these classes happened in the past.

You can mention that this happened in your classes much earlier in the sentence. Every class (typically...) has a teacher, so the reader can infer that you mean your teachers in your classes were too focused on examination prep.

In brief, it is necessary to include mock exams when studying languages, since there is where you measure your level.Our curriculum necessitates mock exams, as it is how they measure language proficiency.

In brief wouldn't be used here. You are not trying to concatenate or shorten a long-winded explanation. Furthermore, the rest of the sentence doesn't summarize the points above! It actually contradicts what you just wrote.

Writing "it is necessary to include mock exams..." seems like you are speaking from your personal viewpoint. This is because you just spoke in your first-person view in the prior sentence. You must clarify that you're writing about what somebody else thinks, otherwise it looks like you're contradicting yourself.

Although languages are not only doing andBut learning a language is not about continually doing exams, w. We need to acquire other types of skills and knowledge.

"Although" reads more like the second half of your sentence will provide a counter-point or additional information to the first.
For example: "Although he wasn't the fastest runner in the group, he had the most endurance."

You would use "But" or "However"

English has been a part of my routine since childhood, but what do I like the least about learning it.?

This sentence works as written if you're posing a question to yourself that you will answer later in your essay. I personally feel that unless you're a very strong English writer you should avoid using such constructions and instead state what you mean more directly. Your first two sentences could be written like: "What I like learning least about English is that sometimes teachers focus too much on preparing students for exams." This answers the prompt directly and clearly.

Personally, I think that sometimes teachers focus too much on preparing students for exams.

This sentence is great on its own.

In my case, this is what happens to me with my teachers, especially m. My particular classes were too focused on Cambridge Exams, so I got tired of them.

Avoid a comma splice by splitting up your independent clauses.

In brief, it is necessary to include mock exams when studying languages, since thereat is wherehow you measure your level.

Other than these changes, this sentence doesn't really support your argument. You start by arguing that you don't like exams ("In my view, this is a mistake...") but conclude here that they are necessary. If you want to soften your language, I recommend something like "However, I understand that it is necessary to...." This adds the point about the necessity of exams without invalidating your earlier remarks.

Although languages are not only doing and doing exams, we need to acquire other types of skills and knowledge.

It's difficult to understand what you're saying here. My best guess is something like: "Language learning is not only taking exams: we need to acquire other types of skills and knowledge."

English has been a part of my routine since childhood, but what do I like the least about learning it.?

When asking a question like this, we usually drop “the” and just say “what do I like least…”

Personally, I think that sometimes teachers focus too much on preparing students for exams.

In my view, this is a mistake, as it can wear students out and diminish their motivation to learn.

“Wear out” is perfectly fine in casual speech, but “exhaust” sounds a bit more formal and fits well in written English

In my case, this is what happensed to me with my teachers, -especially in my particularrivate classes ,which were too focused on Cambridge Exams, so I got tired of them.

You could also say“ Eventually, I got tired of them.“ this one is more formal

In brief, it is necessary to include mock exams when studying languages, since there is whereas they help you measure your level.

Although languages are not only doing and do learning isn't just about taking exams , we need to acquire other types of skills and knowledge.

English has been a part of my routine since childhood, but what do I like the least about learning it.?

In my case, this is what happens to me with my teachers,. I got especially my particulartired of my classes that were too focused on Cambridge Exams, so I got tired of them.

In briefthe end, it is necessary to include mock exams when studying languages, since thereat is wherehow you measure your level.

AltThough, languages are not only about doing and doing exams, we need to acquire other types of skills and knowledge as well.