Nothing else to live for.?

I've given up on life I've completely failed high-school I'm a failure that's What life is all about is high-school I got straight F's my parents hate me I started working out a lot I've achieved my goal 160pounds muscular I've improven my self image to the fullest I can get just about any girl I want until she finds out I have no future. I see my classmates pushing on as I am going nowhere society is ****** people say life is hard for people who have a good education as it is and I don't wanna wind up as a 40year old janitor I'd rather die I've been living a fantasy then reality hit me and I can't take it it's time to die I guess this is my last approach for help before I tie a gardening hose around my neck