I'm not a scientist, but it's pretty clear to me that humans need social interaction to stay healthy. The good news is that can take many forms. I play softball with people I know and like, meaning there's no social pressure, but it could be something as simple as inviting a friend over to play video games or have dinner (if you like to cook) or going to a movie. I'm an introvert who works remotely, so I always want to at least go to a bar or restaurant even if I'm just meeting one friend. But the point is to try to do the activities you like with someone else or a small group of people you're comfortable with