I have so many questions about life!

Biologically it's to breed, raise your young and then die. But I don't care much about any of that, for me life is about living it the way it makes sense to you. To do what makes you happy as long as you're not hurting anybody else, and if anybody tries to tell you how to live your life, you tell them to go fuck themselves. Because at the end of the day you have to live with yourself, they don't.