How do people do it?

As I sit at my desk staring at the cursor blinking and mocking me, I wonder how people go about their lives continually. When I think of how long I've already been alive, which seems really long at times despite it only being 35+ years, and then I think about how much longer I may have, although it could be only one more day for all I know, I just wonder how I keep going. I feel like I've accomplished plenty and yet nothing at all. I am bored and curious at the same time. I want to know what tomorrow will bring yet expect it to yield nothing new. When I try to write, I keep wondering why I'm doing it, who will read it or even want to, and what the point of it at all is. But I guess I gotta do something, otherwise life truly becomes pointless. Which it may be anyway. Okay, enough with the depressing post. For now...