Fuck. Even as a guy, I relate to what she's doing. I know what I'm doing is making it worse, but a part of me is like "I've already dug myself a hole, backing out now will seem even more pathetic. Just commit." But massively regret the following day and hate myself.
But that was when I was a young teen, and am extremely glad to have grown out of it (even if it took 5-8 years), though the regrets still occasionally come back to me.