It's happened to me, and I wish there was a quick way to just say, "Ok, I'm done" and have all the feelings of guilt, embarrassment, shame, and ickiness just disappear. Every time I've found myself in that place of wanting to let go and just not knowing how, it has worked itself out; eventually. Lots of prayer, sometimes some fasting, and time.
Keep learning, keep growing, and be of good cheer! I know; it's easier said than done. Just do your best.