hi--
not only would you have to learn about tile installations but also drywall replacement...can you do it yourself...yes you can but it would take you 4 times as long and cost you more than if you hire a tile installer...remember..he already has the tools,the experiance and can get the material much cheaper that you can..if your still willing let me know and i can give you a tool and material list....but please consider the professional,i think you will be glad you did
good luck