What would you do if nothing really mattered???

Nothing really matters to me anymore. What i meen is ive come to the reilization that i will someday die and nothing i do will no longer matter. Some people may think this is sad but its not. Im a happy person i just dont care about anything. So I need to know what to do. It doesnt matter what you say I will pick one of your ansers and ill do it, be it good, bad, illegel, ANYTHING. I just need that one idea ive been looking for. Mabey someone here can help me. Im not interested in killing myself. I will die when i die. But theres got to be something out there i can do to p my time on this earth. Nothing works for me anymore, not working, playing, , spending time with friends and family, fishing, swiming, exercising NOTHING. Please hel pme out here.