You could always try praying that you will know the things for which you need to seek forgiveness. Generally, I would think that if you are still bothered about something that you have done, then you may need to seek forgiveness in some way. Sometimes the only way left is between you and God.

But if you have OCD, and obsessions about wrongs that you have done in the past, then most of them are likely to be obsessions that you need to try to let go of. Almost invariably, people with OCD are extremely conscientious and good people, who would not harm anyone if they can prevent it. Nobody is perfect, but if you have OCD I would guess that you probably put a great deal of effort into trying to be perfect. In that case, you can still pray, and ask for discernment between any past wrongs that you need to take care of, vs. those that need to be released.

Rap