Hey Me, Whatcha Gonna Do?

It is so strange. When I was oh, fifteen. I did not have to have more than two dollars and a good pair of sneakers. Weekends, nights and time off, I was out and about until after midnight. Socailizing with friends, trying to get people to buy my liquor, searching for the big fat bag of pot. (I grew up in the seventies) Rock music was everything. I lived it and breathed it like I was responsible for every note of it.
Here I was a punk kid, with nothing but dreams and a over active libido and imagination.... and I had more fun than I do now. It seems the older I get, the less I want to do. I am not really into going to the movies, I don't bowl or play golf, and I don't go to bars anymore. DAMN! What else is there? I am not about to take up Bingo.
It is funny. When I am at work, or heading back to work for "MY" Monday. I can think of a dozen things I could have or should have done. But the start of my weekend, until the day I go back to work I am completely lost. I cannot think of a single thing I want to do. I sit home and play online, I watch TV, I drive to the store and get something fattening.. then back home to do NOTHING! There has to be more to life than this I tell myself. Yet as bored to tears as I can get, I can think of nothing at all to do.
Then another week starts, and the process starts all over again. Yes, I have thought of planning ahead. Of course then something comes up, and I am right back where I started. I did take a little road trip out to a place deep in the woods during fall to see the view. I was there all of 30 minutes and was ready to make the long 45 mile ride back home.
When I do get out and about, I either get tired to fast, or I get bored, and wind up going home anyway. I am only 51 years old. I am in good condition (old enough to repaint, but young enough to sell).. but for some reason I cannot figure out. I have more trouble finding something to do with myself that I did when I was a teen.
Anyone got any ideas?