How change tub shower into stand up shower?

https://www.houselogic.com/by-room/bathroom-laundry/tub-to-shower-conversion/

https://www.budgetdumpster.com/blog/bathtub-to-shower-conversion-open-shower/

Lots of videos on Youtube and tons of articles on how to do this.

My tub was cast iron, so I smacked it with a sledge hammer to remove it. I bought a fiberglass shower pan, but you could put down cement board and mortar Sloped to the drain and add small tiles to that. I lined the walls with cement board and tiled the walls. The part of the tub/shower water valve needs to have the tub fill opening plugged. Best bet is to buy a new valve so you will have the temperature protection found in new plumbing.

Thanks for the suggestions and I’ll probably checkout you tube also.