It's not just a hobby you need, it's purpose. For some that is a hobby. If you go the hobby route, try to look for one that has in person meetups. Others going through this use self-improvement as their purpose (gym, suit up, etc). Church works for some. Consider some continuing education courses. Would charity work suit you? There are places like habitat for humanity that you can volunteer at. Maker spaces can be fun. You might also want to try out working from a co-working space.