How about go outside and enjoy the wonderful fall leaves changing color or ride a bicycle or just go for a walk? Not everything has to surround playing video games. Take a break from it once in a while. It's nice to enjoy the simpler things in life sometimes. 
This is the best advice here. Start working out or running if you don't already. Do some volunteer work. If you're old enough to be out of your parents' control, take a roadtrip with some buddies. Just do something different, maybe a little crazy.