Get out of a folder using Git Bash
To change your directory in git-bash to that specific path you can use this command :
cd /c/user/myUsername
basically you have to replace backslash with standard slash, or otherwise if you simply want to go to the parent directory you can use :
cd ..
as stated in comments that you already received on your question ...
Just wanted to add, make sure to insert space between cd and ..
no: cd..
yes: cd ..