I have used another language correctionsexchange website called Lang-8 for a long time.

Since it doesn’t accept new users any more and its community is kind of dead, so I started to mainly use LangCorrect.

いいですね。

My immediate goal is to improve my English, especially in speaking and writing.

Self Introduction for the "About me" Section on LangCorrect

Sometimes, I also do language learning related live-streams on Twitch sometimes.

Just varying the sentence beginning here.

I haveFor a long time, I used another language corrections website (Lang-8 for a long time), but since it doesn't accept new users anymore resulting in a dying/dead community, I started to mainly use LangCorrect.

Just connecting this sentence to the next one here. I also changed the sentence beginning again.

My immediate/short-term goal is to improve my English, especially speaking and writing.

'Immediate' is okay, but it makes it seem like you want to accomplish this goal in a really short timeframe, so I would personally use 'short-term' which (I feel) is a broader timeframe.

C(Feel free to) check out the related links in the note section.

Just added the "feel free to" so it doesn't feel as commanding.

I am an English learner and a video game oriented content creator who often posts videos and does live-streams on Twitch and YouTube.

While I don't think it's grammatically incorrect, it's way more common to see livestream without the hyphen in my experience.

I also do language learning related live-streams on Twitch sometimes.

related feels somewhat redundant here

Since it doesn’t accept new users anymore and its community is kind of dead, so II have started to mainly useusing LangCorrect mainly.