some thoughts from an old timer-
you are still a young man with plenty of time for things to change. there is so much more in the way of amenities nowadays compared with when i was your age several decades back [the 70s]. there are the various "meet-up" threads here on WP which if this forum had existed when i was young would surely have spared me much angst-ridden isolation. there are so many online things which can facilitate meeting other like-minded folk. there was nothing at all like then way back when i was young. i lived out in the sticks where there was no public transit, and anything in town was too far to walk or even bike, this was before i ever had a car or even a driver's license. so i was basically stuck home with parents who were disgusted by me and my failure to be normal. college was for the rich kids of which i was not a part. in high school i was totally isolated, no friends or even acquaintances. i went to school, went to class, went home and dreamed about better things. i didn't get to meet new people until i was forced to join the military after i got laid off from my last "mcjob" in 1983. there i met different people but they were, by and large, quite unpleasant sorts, making me wish i had never signed the damned dotted line. but it was either that or continue to be homeless, as there were no jobs at all [which paid enough to pay rent] during the reagan recession which was happening then. from then until recently [a few months ago] i did not manage to meet one person similar to myself. then i stumbled upon the local meetup.com aspie meetups and finally i got to meet people like myself. if i had offed myself, i would never have gotten to meet the people i know now and am comfortable around. if you off yourself now, you don't know what you will have missed. i hate to see somebody cash in their chips before their lives have had a proper chance to unfold.
suicide is hard to do right, and attempts are fraught with pitfalls. if you mess it up you will survive and be maimed and really in a bad way, you will know what you used to be and your mundane reality will become far more unpleasant. a famously dour writer put it best-
"Razors pain you;
Rivers are damp;
Acids stain you;
And drugs cause cramp.
Guns aren’t lawful;
Nooses give;
Gas smells awful;
You might as well live."
at least one person [me] truly hopes you reconsider. you are here for a reason- you may not yet be aware of this reason but that doesn't change the fact that there is a reason, it is not all in vain. i didn't discover my own reason until the last decade or so. surely there is at least one pleasurable thing in your life that you would acutely miss if it were gone for good. if you go before your time there will be no more of those pleasurable things ever. you still have much to do and much to learn. you were meant to grow wise with age. don't defeat your purpose in life.