My only hobbies are dnd and vidya. I realize these are shit-tier

Craft skills -
Woodworking is great, very tactile, you can make a variety of useful objects for a house. There are super basic things and very advanced projects, strong hobbyist community.

Soft skills - programing, photo editing, audio, etc. If you have a basic grasp on computers these are a logical next step.

Basically, take something you like and fit a craft skill around it that has some long term financial viability.

If I were you I'd look into 3d printing, you can make a variety of DnD related stuff while learning some coding that applies to fabrication. You can also use it as an excuse to document you're 'work' to practice producing digital media and communication skills.

2 cents.