Hey, I completely relate. I literally have no motivation and don't socialize much.
For the best advice I can give, I would first look for something small and simple.
For example, I have the same situation, but I have developed an interest in digital art. Pretty simple. And I got really obsessed. So now I watch a lot of speed paint vids on youtube, watching others draw digitally, and I am asking for the equipment for Christmas, so that I can practice digital art myself. This way I began to plan doing the art, maybe making some sort of account on the internet, and sharing it with people, maybe even creating a small community etc.

So this is just a small interest I had, that I made into something I'm passionate about, and it satisfies me so far. Later, this small interest might help in creating some new and bigger passions.
Hope it helped a bit.