I don't see any questions. But here's an answer for you. Life is hard for everyone. Lose some weight, fix your dick, and get out there and meet people.
You have to be a troll; you always seem to post the most insensitive and absolutely unintelligent statements.
OP, I'm sorry. I honestly can't imagine even half of what you're going through. I commend your choice to stay away from alcohol, but I would recommend seeking counseling, not meds, to help you. Depending on who your peers are, it might better or worse to come out - I can't say that for you, and it's your choice entirely. Getting on a regular exercise schedule has been clearly shown to boost one's mood, and that certainly seems like a good idea for you to counter part of your depression and obesity.
Sex is, obviously, something we should all have the right to hope to have - but your life is worth living whether or not you are capable of having it. I have lots of platonic female friends, and no intention of sleeping with any of them, because I can love them just as friends without benefits.
But, most of all, pay attention to what someone else said in the thread: don't give up on yourself. Life is, qualitatively speaking, difficult for everyone; and some of us have it worse than others quantitatively. Remember that you are a valuable person simply because you exist. An inability to have sex, being obese, or being manic doesn't change that a bit. You are valuable.