Things I want to do (during) this year

It's October already. This year will end in 3 months, too.
In these 3 months I will do the following:

(1) I want to improve my English skills. So, I will try to watch English movies with English subtitles three times a week.

(2) I want to lose weight, 3kg. Sometimes, I am taken as a pregnant woman and when that happens, I feel bad about it. So, I want to lose weight.

(3) I want to master how to wear a kimono. I go to kimono classes twice a month and these classes finish this month. I want to keep wearing  kimonos. I will wear kimonos and go out sometimes.

(4) I bought a book that teaches Thai characters. I have not finished it yet so I will do it this year

Things I want to do during this year

It's October already. This year will end in 3 months too.
In this 3 months I will do the following.

(1) I want to improve my English listening skill, so I will try to watch English movies with English subtitles three times a week. (or you can just say "I want to improve my English" in general)

(2) I want to lose my 3kg of weight 3kg. I am sometimes confused with a pregnancy. Sometimes people mistake me for a pregnant lady. When people say I was said like that, I have feel bad feeling. I want to lose my weight. (or "I plan to lose weight" suggests that you will take action to lose weight. Want = desire but no action taken)

(3) I want to master how to wear a kimono. I go to the kimono class twice a month. The class is will finished in this month. I want to keep remember how to wear a kimono. I will sometimes wear a kimono, and go out. (sounds ok, but we can shorten it to "I will sometimes wear a kimono out" same meaning)

(4) I bought a textbook which learn on/about Thai characters. I have not finished it yet. I will finish that this year. (I have not finished it yet but I plan to finish it by this year)

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1) Normally, for languages, we will say "I want to improve my English/Japanese/Korean..."
We use "skill" when we want to make it more specific "I want to improve my listening/speaking/soccer/basketball skills"

2) Normally, we don't say "lose my weight". We just say "lose weight". "Did you lose weight?" "Did you gain weight?" "I plan to lose weight by exercising at the gym." "I ate salad for a month and lost 10kg of weight".

Thai is really difficult! Lets work hard Mari!! Never give up!!!

Things I want to do during this year

It's October already. This year will end in 3 months too.
In this the next 3 months I will do the following.
...

The 3 months are coming in the future, it would sound more native and natural to say "...in the next three months...", even though "...in these three months..." is correct grammar and will be understood.

Things I want to do during this year

It's October already. This year will end in 3 months too.
In this 3 months I will do the following.

(1) I want to improve my English skill. So I will try to watch English movie with English subtitle three times a week.

(2) I want to lose my weight 3kg. I am sometimes confused with a pregnancy. When I was said like that, I have bad feeling. I want to lose my weight.

(3) I want to master how to wear a kimono. I go to the kimono class twice a month. The class is finished in this month. I want to keep how to wear a kimono. I will sometimes wear a kimono, and go out.

(4) I bought a text which learn Thai characters. I have not finished yet. I will finish that this year. If you're planing please say I am going to...