How to paint my shower stall, it is tiled.

Rustoleum makes a bath paint kit, I believe. But honestly, you could probably use acrylic or any other kind of paint - the key would be to seal it properly. Either Flex Seal (waterproof) or a marine sealant should do the trick.

https://www.todayshomeowner.com/how-to-paint-over-ceramic-tile-in-a-bathroom/

I wouldn't use regular paint again. It doesn't hold up to hot water and soap. It develops cracks and peels. I have not however, tried Flex Seal over paint, maybe it works.

I have painted a kitchen backsplash with Krylon Fushion spray paint, and it held up really well, but it wasn't constantly splashed like a shower would be.

I personally would get it professionally done by a tub and tile refinisher. If I had to paint it myself, I would use a paint made for tubs and tile. It is hard enough to get a good finish, and I wouldn't want to redo it.

Use apoxy paint....made to hold up, I even used it on my fiberglass boat.

If you really can't live with the color of your tiles, yes, use epoxy paint. I would rethink painting them as if any of the paint started to peal or chip from the constant water and cleaning, you will have a real mess redoing the shower.

I used to manage apartments. Two tenants decided to paint their tiled kitchen back splash and counters before I started working there. They looked horrible, and over time they started to peel and chip. The new owners of the bldg. had no choice but to demolish them and remodel the kitchen counters. Don't make the same mistake.