[seba_dos1]

I don't think you can call yourself "using git" if you're not comfortable with such simple concepts. Pointing a branch to a specified ref is one of the most basic operations you can reason about when using git!

I'm perfectly aware that many people don't think when using git at all and instead merely copy'n'paste memorized commands hoping that they'll do what they want to accomplish, but this is something you should move past when you want to stop calling yourself a "junior developer". This is one of the most important and helpful tools in your field of work, you can either take advantage of it or suffer.