This is a question that no one can honestly answer. There's only one way to truly find out what happens after death. You'll probably get answers that vary from others, but it's all just speculation. Those who are religious will most certainly say that there's a heaven and hell where you go for eternity. Those who are athiests may say that you just stop existing, or that you become one with nature, something to that effect. Other people believe in reincarnation. It all depends on your belief structure. But it still all comes down to speculation. There is no answer to definitively give you.