This may be a controversial way of putting it, but suicide is stupid. It's dumb. It's pointless. You have one life (as far as you can be entirely sure, evidence-wise). A life is basically a bunch of time, which you can spend by being in various situations. Don't like your current situation? Change it. Get yourself a better situation. It might take a lot of effort, but unless you're locked in the basement of a serial killer/rapist or you have some incurable deadly disease (or something along those lines) with no way out, there must be something you can do. Maybe not instantly, but if you keep nudging things in the direction of where you want to be in life, you might actually improve your situation. And even if you don't get where you want, at least you will have tried, and that's better than giving up and wasting all that time you have, that you could have spent living.
Live. Try it. Give it a shot. Sooner or later, your life might be better than it is today, and then you'll be glad you didn't waste it.
I obviously don't know what it is you don't like in your life, but I'm sure there must be some way of moving yourself away from it, sooner or later.
Or, you know, you can just be complete idiot and kill yourself.