Is there a way to commit suicide without pain?

I love to read books so maybe this is where I got the idea. They just keep saying stuff about the future and I thought about it. When we die, nobody would remember us, only the lucky people enough to be famous like Beethoven or Shakespeare or whoever. So, I thought, if know one will remember me, and I'm just gonna die anyway, what can I do to die without any pain. Still don't get my point? How about this: I'm 14 and mostly my problems would be deadlines for my projects. 10 years from now, I will forget all about that and a couple of years later, I would forget about that too. If I forget, then I'm positive everybody wouldn't remember either seeing as they have their own lives to remember. This is the only thought that manages to go through my mind everyday: A millenium from now, I am nothing. Don't even say I am, you know it's true. Even you would be nothing as well. Think of the people who died brravely in the wars. Do you even know their names? No, of course not.