What's the point?

TT wants us to behave as though nothing happened. I wish nothing had. I've realised today that there is nothing I want from life. I've done everything I wanted to do apart from raise a child. I can't do that now, it's too late. So everything I wanted to do that can be done is done. What do people do with their lives? Normally there's something to strive towards but what happens when they've done the striving and they've got there?