我的自我介绍

大家好！我叫弗拉基米尔，俄罗斯人。我（在）学（it's better to leave out '习‘）英文（和）汉文，很想把它们学好。认识更多的朋友。我可以帮助那些想学俄文的人。

@我的欢迎..it's just weird being used here 

@when you are doing sth, you need to use ' 在'

@学习英文, it's not strictly wrong but generally leaving it out 

@ 和 and

@correct words order: 把 +sth. + verb + adv.  

@更多的, 那些想 it will sound more smoothly