Hi, good afternoon,. I hope you're well, t. This is my first time here, so I really don't know where to start, s. So I'm gonnaing to introduce myself, c. Currently I am studying a career, which is psychology, t. Therefore, connecting with people is important to me, including people from other countries, s. So that's why I've been decided to learn English,. I really wannat to improve my level, covering aspects like grammar, listening, reading, etc.

"Gonna" and "wanna" is colloquial and isn't really written in professional settings.
This entire paragraph can't be one sentence.

I hope that whoever is reading this can help me to reach my objectives, as well as those who need help,nd I'll be here to support Youthose who need help.

Hi, good afternoon, I hope you're well, this is my first time here, so I really don't know where to start, so I'm gonna introduce myself, c. Currently I am studying toward a career, which is in psychology, therefore connecting with people is important to me, including people from other countries, so that's why I've been decided to learn English,. I really wanna improve my level, so I'm covering aspects like grammar, listening, reading, etc.

Super tiny corrections, perfectly understandable!

I hope that whoever is reading this can help me to reach my objectives, as well asnd for those who need help, I'll be there to support Yyou.

:))))