Im on the brink of insanity!!?? HELP!!?

Ever since i got into high school my life has been so miserable. I don't have a single friend. my best friend of like 8 years doesn't want to hang out with me anymore b/c shes made new friends. Im so unhappy and alone. I honestly don't think i can take 2 more years of this ****. Im slowly going insane. I always tell myself it will get better but im a ******* idiot to believe that. its only gotten worse. Every time i feel like i take 2 steps forward i get bitched slapped 5 steps back. i get no text msgs, no e-mails, no phone calls from anybody. Im seriously considering suicide. i made a list and came up with 73 reasons why i should kill myself. obviously nobody cares about me at all and i honestly feel if i died right now, it wouldn't matter. I HATE HIGH SCHOOL!! i cry a lot. whenever i go on fbook, i look through other peoples photos and read their statuses and see how happy they are. I envy those people. they have a lot of friends, their family has a lot of money, they're so happy. i believe im damned on earth. w/e now im just rambling. any advice. and please don't say "don't kill yourself" i need real advice. i've tried volunteering to potentially meet other people but in my ***** *** town you have to 18 years and older to volunteer. I cant drive and live in a single family household with low income right now. I already play a sport, tennis. I cant afford lessons and ive put post online for hitting partners but only 40 year old men have replied and my mom said i cant meet up with 40 year old men. so there's another **** life took on me. i would love to get better that's not going to happen with my cirstances. please any advice?