What to commit/push to git

[Savvasun]

So, I have a repo on GitHub, and I've connected everything together in android studio, but now I don't know what to commit. I originally thought everything updated itself, but then realized you need to push all the changes made to Github. I found out that all the files in red are the one with changes. Once I was connected to github all the files in the project were red, so now I am confused as I don't know if I need to commit/push all the files right now, or leave them be. Also, selecting each file to commit and then pushing them sounds like a lot of unnecessary work when all I want to do is work on a project on my laptop instead of my pc.