An idea to fix a broken tile area. Don't tear out the wall of tile, make light of it! Caulk the broken/missing tile to waterproof, then add an air fern (kitchen backsplash) or a fake plant (shower or tub area).
Braden Kowitz puts it another way: "I think of teaching design as kind of like learning to ride a bike. I can give advice about riding a bike, but it’s not until you get on the bike and try to ride that you can learn how.