My choice is either use drugs/substance or keep living my life this way untill I call it quit
I don't think you're thinking about the choices you have very thoroughly.
The thing is, you can't compare life to a game you're watching that you already know the ending to. Because you live your life - you're actively involved. But if you want to pretend that you're just a bystander, then sure, I can see how it could seem really boring and pointless. But your teammates are going to start yelling at you to get back in the game and you're really not doing anyone any good just standing there (including yourself).
Yeah, we all die in the end, but we're here now so what are you gonna do about it?