optometry school ... focus on the things

heh.

Let's see... Woodworking, car repair/restoration, home improvement (from redecoration to remodels), kayaking, camping, mild 4x4 offroad stuff, hiking, latte art, playing a banjo very poorly, 3D printing, coding for microcontrollers, coding dumb games, gardening, making my garage shop nicer, book binding, painting (as in walls, not that artistic stuff), making bread, diagraming the nightmare of 100-year-old wiring in my house (planning a rewire), occasional motorcycle rides. Probably some other things I've forgotten about.

If you'll have free time for a while still you could maybe find an easy job to do. If you don't really need the income there are a lot of things that can be fun.

Coffee shops can be pretty cool, depending on the business there are some interesting things to learn, and it's generally low-pressure work if you're not a complete idiot.

If you like cats and dogs animal shelters usually are happy to have volunteers. You'd probably be cleaning up shit a lot of the time, but that's not hard and you can balance it by giving the critters much-needed and appreciated attention. You can also volunteer to do things like bottle-feeding baby animals, that tends to take a lot of time so shelters are frequently looking for volunteers.