Do I deserve forgiveness?

I read somewhere a line that said “Worry is misuse of imagination”. As I finished reading it for the first time I told myself “..and regret is misuse of memory”. Now I realize that I was very wrong when I thought so. Actually I realized very recently that those who don’t regret of their wrong doings, they never learn a thing; now I know why I haven’t learned a lot in past few years of my life. Nevertheless, I have been regretting much these days to compensate for all those years. I have acted like a real jerk in past few months and I’m so ashamed of it now unlike the other times when I always had excuses handy for everything I did wrong.

It’s been said if someone really regrets of his/her actions, they should ask for forgiveness. But as a matter of fact it’s tough asking for one. It's tough because human nature has developed rigidness over centuries through out the course of evolution of the civilizations (we haven't reached here peacefully you know) and to ask for forgiveness one has to throw away the pseudo-pride, get out of jar head mindset and accept the mistakes and apologize. So it took me sometime to ask for one but when I did so, I felt lighthearted even when I wasn’t forgiven that moment; after all we can’t proclaim amnesty for self.

Later I found out that the first quote “worry is misuse of imagination” has been said by Dan Zadra who also said “Resentment is one burden that is incompatible with your success. Always be the first to forgive; and forgive yourself first always”. But can I forgive myself for everything I have done wrong?; I am not so sure about it yet.