Nobody ever figures out what life is all about, and it doesn't matter. Explore the world. Nearly everything is really interesting if you go into it deeply enough. Work as hard as much as you want to on things you like to do the best. Don't think about what you want to be, but what you want to do. Keep up some kind of minimum with other things so that society doesn't stop you from doing anything at all.
To each his own" is our model, and since this is the case, i would like the aliens to come and attack us today, cause only then well unite as one world instead of being seperated by all religions governments, prejudices, and races, and only then will we figure out the parts of humans science has yet to explain.