Can't seem to commit

There is probably an easy solution to this but I'm seeing something really
weird...
I can't seem to commit anything to my new branch. When I try to commit it
just says "no changes added to commit (use "git add" and/or "git commit
-a")"
When I try to do git add it doesn't seem to do anything.
When I try to push it says "Everything up-to-date", but when I look at the
branch on github my files aren't there.
Strangely I was able to do everything fine with a different branch I created
afterwards.
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