So I am using Github very infrequently because I am the only one working on a project. After about two weeks, I decided I should probably push some code to Github. When I pushed the code, it set the files I am working on back to where they were two weeks ago (I am using Xcode and it basically erased everything from the last two weeks) and didn't push any of the changes to Github.
How can I undo this?
Thanks