Can My PIED be healed?

Hello everybody, and this might be a dumb question because I'm new at this, but after much research I have concluded that I have PIED, and am scared to death... I don't wanna be this way for the rest of my life, and I certainly don't want to live with the shame of not being able to get it up for my girlfriend. I have been PMOing (with death grip) since about 12 and there has been no real stopping until about 13 days ago when I decided to quit for good (I am 19 now). At this point, my question is: do I still have a chance at healing? I have been researching for so long on this topic and my results are still inconclusive, and I need to know if I have irreparably damaged my body. Also, if i continue to abstain, will I regain my sensitivity and ability to get it up??? I would appreciate some feedback as I am desperate for answers and aid.