New Skill !!

No space is required after the last word.

Recently I started to learn a new skill ( Ccontent Wwriting ) ).

Content writing doesn't need to be capitalized, as it is not a proper noun.

Maybe iI have a good background in this field, but iI wanna be an expert , so iI started with a condensed plan by cChat gpt GPT.

When the letter I is by itself, it is always capitalized. I have placed the part about wanting to be an expert inside of two commas because it seems to function as an aside, like an appositive.

iI should finish it at 2 weeks almost 2 weeks.

I don't know why, but "almost" seems to always come before the indicated amount of time.

tThanks.

It's a short farewell, but it still needs to be capitalized and to have punctuation.

New Skill !!

Recently I started to learn a new skill ( Content Wwriting ) ).

(1) No need for capitalisation, since "content writing" and "writing" are not proper nouns.
(2) Just "writing" is fine, since whatever you write is known as "content" anyway.

Maybe iI have a good background in this field but iI wanna be an expert , so iI started with a condensed plan by cChat gpt GPT.

(1) "I" is always capitalised.
(2) When "expert" is a noun, we need the article "an" in front of it. Alternatively, if "expert" is an adjective: "I wanna be expert at it." The "at it" clarifies what "expert" is referring to.
(3) "ChatGPT" is a name, so it is a proper noun and should follow the correct capitalisation.

iI should finish it atin 2 weeks alt most .

(1) When talking about time frames (such as "2 weeks"), we use "in", and not "at".
(2) I think you meant "at most". If 2 weeks is supposed to be an estimate rather than an upper limit, then you'd write: "I should finish it in approximately 2 weeks."

tThanks.

Just minor capitalisation and punctuation issues.