to live long until ageing is cured, then you'll have the rest of eternity to figure that out and live an extraordinary life
in the meantime though, just do whatever you love doing and don't waste what time you have on earth in a crappy job or with people you hate, give meaning to your own life and do whatever makes you happy. you also need to realise that once you're dead, you're gone for eternity, so make sure you live long enough to when disease and ageing is cured and if you're dead by then just get yourself cryopreserved or something, unless you wanna be gone forever that is.
also don't listen to anyone saying you're only here to reproduce and that's it. i mean sure, that's what evolution intended, but we're intelligent enough now to not be bound by random coincidences in nature. if you don't want children then why have them? just do whatever makes you happy, it's not that hard
There's none! We are born to reproduce and die, just like any other animal. Just because we are more intelligent, it doesn't mean our lives mean more. Actually, we live less than some turtles.
