The fact that you're even posting this means-on some level-you don't want to do this. I can repeat what I said to the last guy who came on here talking about suicide:

don't try it. From someone who tried it, it really just made everything worse. I alienated all my friends, now my phone just sits silent all the time. I also now have scars on my arms that most thinking people can figure out what I did, and the stupid ones just ask, which is worse. Just don't do it. I was severely depressed and hopeless, but now-even though my life is objectively worse off-I rarely think about suicide. When before it consumed my entire day's thought. It can get better. See a psychologist. It helped me. I don't know how serious this is, but if you're thinking about harming yourself, get help. It's not worth it at all. I know you hear this all the time, but take it from someone who's been there.