Hi:
A view from a 50-year-old woman who has been over that bridge before.
First off, I think you've realized by now that a relationship built on a lie will never last. I don't know what kind of lie it was but the fact that it went on for awhile and it sounds like you didn't own up makes me wonder. How would you feel if that had happened to you? Would you be as forgiving?
OK, you've learned your lesson, namely that every rose has its thorns. Now, how to go about getting your life in order?
First off, STAY COMPLETELY AWAY from him. Take his telephone number off every place you have it and DO NOT TEXT him. It will take a great effort on your part to do this but if you can, you're on your way. If you have mutual friends, avoid them for awhile. They may mean well in telling you what he's doing but they're not helping you.
Next, go ahead and mourn your loss. Every break-up teaches a lesson. With my first "True Love" (way before you were born) I learned that I wasn't the bad person I believed he said I was, that I had worth. That love is between equals not a master-slave relationship (I don't mean BDSM). Don't be surprised if you dream about him. I did for quite awhile and would wake up in a cold sweat. Even 22 years later I occasionally have a dream but in these dreams I'm telling him that there's no way we can ever get back together.
Then start focusing on yourself. You need to be a friend to yourself before you can be a friend to anyone else. Cutting is not the answer. Why would you defile yourself over a mistake? You are a person with worth and are NOT a doormat. Make some changes--out with the old, in the new. Change your hair (color, style, length), buy some new clothing (consignment shops have great stuff at good prices), whatever reminds you of that part of your past gets pitched. You don't say how old you are so I'm trying to come up with ideas that don't cost much.
If you're in school, now's the time to make new friends and join some new activities. Is there something you've always wanted to do and never did (learn to play chess, join a book club, whatever)? Now's the time! Form a study group for one of the classes you may find either really easy (where you can help others) or really hard (where you can receive help). You'll have a group of people that you'll have something in common with.
I really haven't had all that many relationships in my life (I married for the first time when I was 3

, and there was usually a multi-year period between them (I'm a slow healer). However, I've been blessed with a wonderful support group of friends, both male and female, with whom I could hang out and who would keep me on the straight and narrow. Do you have any kind of support network?
The thing is, you have to take that first step. None of us can do that for you. It's very difficult and very scary. To put it coldly, he was a habit you picked up and now it's time to drop it. But you know, you have the power to change your life, make new choices. Of course you're going to make a few mistakes but that's how you learn.
The first love is often the hardest because "love" is presented as sonnets and symphonies. Even the first few months of any relationship has one walking on air. You'll know when you're in a committed relationship if you can accept each other for who they are (bad faults included), trust each other, be there for there for each other--all the things that friends do for each other. After all, friendship is the basis for anything further. Even if it doesn't work out you may be able to part as good friends and discover another side of that person you can appreciate. Not all love is romantic and I think the "filial" love may be more lasting.
You will get over your sadness but if you're not feeling better after a few weeks I suggest you consider seeing a mental health professional. You may have a short-lasting depression that could be overcome by just talking things through.
Good luck and keep posting. We do care.