Corrections in red; stylistics in blue.

First post

Well, I don't know, what to write here, but I'll try.

Hi, my name is Yuri, and I'm trying to learn English. I'm not sure [1] about my English skills.
Next week I'll be interviewed for a new job in English, and I'm so nervous about it. :(

[1]  Good variant:  "I'm unsure about my English skills."