Link GitLab and Visual Studio Code

Hi,

I’m beginner on Visual Studio Code and GitLab. I would like to work on files on VSD and push them on GitLab. I tried lot of things, do lot of researches but I can’t do it. So I need somoene to explain me how to do it please, in details.
I’m on Windows 10.

Thank you a lot for reading me,
Hope somoene will respond to me !