You're going through a transitional stage, which could be termed remorse. That's natural. It is also temporary. Focus on what positive things you can do and say for yourself and others now. Do something that makes you and someone else happy. It works.

If you think bad thoughts...bad things happen.
If you think good thoughts...good things happen.
If you think nothing at all...nothing happens! ;-)

Therefore, think good thoughts and then put them into action ASAP.

Best wishes,

- LH