Originally Posted by Kidman
Why go through all the trouble of education and working your ass off just to make a decent living when in the end nothing matters because you're going to die anyway.
This is something I basically asked as well when I was a teenager, and I'm sure it's a question many people ask at certain points in their life.
For me I kind of looked at it like this: Nothing may indeed matter, but it's either experience all of life until you die, or choose to die prematurely. I can't comprehend why there would be any benefit in choosing the latter. You might as well at least take your time here on this earth and experience what you can because there's no telling what comes after.
Sorry to bring up the concept of suicide - clearly that's not the concern here, but I think this decision is fundamental to the issue at hand.
So anyway, now you've affirmed your choice to live. Great. Now what? You don't want to deal with school just so you can work your ass off your whole life just so you can afford to sit around at home when retired just so you can... do..what..exactly? But think about the consequeses of the alternatives. You could drop out of school and be poor your whole life and struggle just to obtain basic needs (food, shelter, etc) but I'd imagine that would be rougher than finishing school and working your ass off even if you totally hated your career.
What made you get your grades up so you could graduate? You've clearly been motivated enough to do that and you recognize the consequences if you hadn't. I think that's actually good enough for now. You don't necessarily need to have a grand purpose behind it. Your purpose is want to graduate, and your purpose for doing that is because you know life will be better if you do so. Meaningless or not, it will be better.
This could be a lengthy discussion, but that's my $0.02. Consider the consequences of doing nothing and that should serve as a minimum amount of motivation to do something. You are young and don't have all the answers. If you don't have a purpose in life, maybe just make your purpose to set yourself up for success when you are older, more mature, and do find your purpose. (e.g. go through the trouble of education and start working your ass off for now. At least you'll have the resources to develop your screenplay when you realize that's indeed what you want to do later in life, for instance.)