I am sorry you are going through such a rough time, I can relate. I know you feel like no one can relate, but I promise there are others that are going through similar things and will be there to offer support. Especially here. I often feel like no one is going through the same exact thing as me either, and that may be true, but I know there are people going through similar things. The same can be said for you. You are at a difficult time and it seems at a difficult age, and it's not uncommon for you to feel this way.
Believe me, you aren't ugly. You are beautiful. Remember that. You may not like yourself, or how you look, but I promise there are people that will love you for who you are. You'll find them. Not everyone wants someone who is completely happy with their life, great looking with a great body, and conceited. You'll see that in life eventually. I don't have much more to add, just to give my support and say "I hear ya". Take care.