We're not allowed to tell you how to off yourself in this sub. The best we can do is counter your points and tell you why they aren't reasons to end your existence.
So here I go...
First, wise words I'll never forget, "if you don't end up tall and/or muscular and/or handsome, you better figure out how to be smart and funny and rich."
"Short, skinny, and ugly", "never kissed"
Being skinny is easily changed, is waay better than being fat, and you know it. Same for acne. If your head/neck/face structure is fucked up, and you can't somehow afford cosmetic surgery to fix it, then change your perspective and accept your reality. Seek out some fugly girls and befriend them. Or come onto them. They often have wonderful personalities, nice bodies, and probably feel as awkward as you do.... What Have You Got To Lose? You're talking about death. With a confident fuck-it attitude, I guarantee you'll make a friend or ten.
"no close friends", "no female friends"
It's difficult to get and keep friends when you're so hung up on your shortcomings. You HAVE to work on your psyche, and realize some self acceptance first.
"poor"
Join the club. We have to survive and thrive within our means. If you change, accept, and adapt other parts of your life, being a broke-ass won't seem near as bad.
"parents"
They may not understand you, but they love you don't they? That's somethin'. And if they don't love you, then fuck 'em. They're giving up on what they agreed to when you were in the womb. Lots of people get by without the love and support of parents. Is it easy? Hell no. But it's not impossible to overcome.
"no real hobbies", "sit at computer all day"
You have interests. EVERYONE has interests. A hobby is simply doing something with an interest other than just thinking about it. You "don't have any real hobbies" because you have yet to truly pursue your interests in the real world. Which leads me to the obvious Doctor's prescription for sitting at the computer all day..... DON'T...... It's perfectly fine to be an intellectual or a computer nerd. But, if your complaint is that you're always on the computer, then it ain't really workin' for ya. Get out there and see the world in a new way... as if you just had a near death experience and your perspective has changed (cuz that's what this is, in a roundabout way.)
"life will go on without me"
Yep. It sure will. It would if you died in a skiing accident too. Hell, for most people, you will have never existed. But what kind of justification is that for ending it all? Concentrate on the tangible things.
Listen, there are fugly, reallllllly short, messed up people out there. Some manage to get by day to day. Some become powerful business people and celebrities. Some have backgrounds that would make your spine tingle, in a bad way. You've got your work cut out for you, but if you thrive, you've kicked more ass than any of the "normal" people