Forgiving Myself

Over the last few months I've been doing things that I shouldn't have been doing. Involving other people and leading them on the wrong path. Also, hurting other people because of my wrongdoing. Hurting my boyfriend, some friends of mine, and mainly myself.
I've been lingering on and on and on about it. I've been sad and complaining about how I'll never be able to be a better person because I keep messing things up. But, I realized that this way of thinking won't help at all.
I'm trying to change my actions and the way I do things and the first thing to do is to change the way I think. It'll be a long process. If I do bits at a time I can do it. People make mistakes and the first thing to do is to realize why you did it in the first place and how to correct it if the problem happens again. Then to figure out how to make sure the problem doesn't happen again.
I never run away from any problem because that just lets it sit there and if it happens again then you won't know how to deal with it.
Anyone should learn how to forgive themselves and others, because everyone deserves inner peace.