@angel of death,
Depression is a serious illness. There is no shame in seeking help. In fact, I strongly encourage it.
As for your issue with these two girls, the bottom line is, we all go through relationship dry spells, where it doesn't seem as if we can get together with anyone. But those nearly always turn out to be temporary conditions. I bet that'll be the case with you, too.
So, again, I urge you to seek help. Because suicide is a permanent answer (and is not a solution) to a temporary problem.
Go get help. You deserve to live.