Not to be inconsiderate or anything, but a lot of the time, people are just overreacting teenage girls who think their lives are "oh-so" terrible. It looks pathetic. I'm aware some people are genuinely sad, but sometimes it's a different day but same thing. 
To the real point. 
You have a family.
People who care about you whether you call them friends or not.
And a life. 
Not everyone gets a life. Whether you think you deserve one, want one, or need one or not, you go along until you're out of your hole then you live to the fullest, because you've learned you're stronger than you think. The journey starts with realizing you can be happy again. Then for a while, it will just start hurting more, but at some point it'll turn right side up. And you'll be stronger than you every imagined. The feeling is indescribable. I'm not gonna give you the whole: "You're beautiful, your life has a meaning, I love you, someone loves you." I know the thought: Thanks, but you don't know me so just shut up. Honestly.
That whole speech is overrated and painful to listen to, because those people are just pleasers. They're annoying. And they're pathetic and you should strive to be genuine. Not that. 
Anywho. The end is the best part. The end of feeling terrible, unhappy, and just plain done. When you can smile and mean it, you don't even have to think about it.