The Eleventh Principle of Self-love is that you should never condemn yourself no matter what you do but believe that what wrong you do is not you but faults in the programming in you. This attitude will remove guilt gradually.
Try your best and do not feel guilty if you fail for you did your best. You have learned from the experience and you will do better in the future if not at this thing then something as good or better. Good is all about making yourself happy the right way – when you do evil you were trying to do this but were just wrong. Focus on what you got right for it is what counts. Nothing you do is ever all bad.
Every experience be it bad or good means you are a success. Doing wrong does not make you a bad person but a person who does bad things and you have what it takes to succeed when you can do bad! You are still a person that has tried to do the wrong kind of good and you still have much to praise yourself for.
Don’t want to be perfect and that will enable you to do the equivalent of forgiving yourself. Nobody likes people who come across as perfect. Just accept yourself as you are and since you love yourself in doing this, changes for the better will take place automatically. Start accepting yourself right now this very second even if you have done something awful in the last five minutes because you can and why wait? You have done the most meaningful thing ever for yourself and others by accepting yourself that you could do so that means just accepting yourself and your past which you cannot change entitles you to praise and adore and love yourself for it is the supreme good work and blots out the bad deeds. Many people would find your bad points to make you a more interesting person and you can find a way to make them win friends and respect for you. Better to have people gossip about you behind your back for they enjoy it meaning they are glad to have you around than for them to find you boring.
Improve yourself as much as you can. But remember you will never be perfect and big deal! Improve yourself as best you can but like the faults you have left. Be sure to let your dark side emerge in the best way possible for you. This evil is not really evil then. What it is, is neutral for you cannot live without having some faults and you need to be a little nasty now and again.