It depends on the interests you have. I spend much of my time alone and a lot of it is taken up writing. Other people like to do things like exercise, watch tv, read a book, or sew. If none of these catch your interest, then take up a new hobby that does and see where it takes you. It doesn't even matter if you're good at it or not.
But to change yourself to be like others? That is one of the worst sins a person can commit against themselves. You were made as you are for a reason and there is no one in the world who should be able to tell you that you shouldn't be you.
As Dr. Seuss said, "Today you are you, that's truer than true. There is no one alive that is youer than you." And that is an encouraging thought, isn't it?