I know life is difficult, and I know a lot of people on here have been very negative towards you as well. However, the only way to end the Depression you are in is to just keep trying and trying. I guarantee you that your lips do not look anything like mine looked from March through December of last year, and I honestly had a pretty great life. I went on vacations, I met a lot of new people, and as long as I talked about what I was going through to others I didn't have to be depressed.
Talk to the one's you care about, and if you truly feel no one cares about you then start with family. There are doctors who will listen if you honestly don't have anyone.
Believe me I have cried myself over this condition a few times. It's extremely difficult to live with when it's holding you back from doing the things you love doing. I was forced to keep my current job while trying to heal myself and it angered me so much. But I met so many great people from that job and it's led me to make the next big step in my life that wouldn't have been possible so quickly, which is moving to California.
There are a few things that I could guess about you, and I would probably be right. But the one important thing I would like to take a guess at is that you probably do not exercise a lot. Going for a run or slow jog releases all kind of "good-feeling" chemicals inside the brain and causes you a lot of pleasure while relieving a lot of pain/depressed feelings you may have.
Just because some girl said you couldn't touch her doesn't mean no one will let you touch them. My lips had HUGE crusts on them and I was still getting people flirting with me and wanting to be with me. I even had a couple people kiss me while I had this condition, which was relatively recently. This condition does not stop others from having the capacity to love you, only your mental strength and attitude toward this condition and what your perception of what others think of you can stop them. If you have a positive outlook, then others will have a positive outlook toward you.
I'm not going to sit here and say it's easy. It's not. It's the most difficult and embarrassing thing I've ever done. But I've done it. And I'm getting through it still.
Your next step is to ACCEPT your condition. Accept that you want to cure it, BUT WILL ENJOY YOUR LIFE WHILE YOU DO IT. Become happy by telling yourself you ALREADY ARE happy. That's the only way you will do it. We are here for you, whether you believe it or not...we all have the same thing, and we all get depressed about it sometimes.