Lately I can't help but feel disappointed in myself.
What happened that disappointed you?
My expectations towards myself and the world did not match, and I'm overwhelmed
Do be too hard on yourself. Just have a more realistic outlook on things and get back out there.
I know, I'm still working on getting over my failure.
Well work through it however you can, but don't forget that judging yourself too negatively can make it so you never move on. Sometimes you have to just accept what happened and not think about it anymore.