I'm not doing well

I have beliefs that don't match others' beliefs. Why do we have to have certain beliefs engrained into ourselves? I mean, like there is only one life. I think that if I've had too much of life than I can be reincarnated; just I don't want to return to this world. I don't feel at home anywhere in this world and don't want any ambitions no more I just want peace, something that people don't understand