Tile a bathroom or kitchen backsplash

“Hey all! Just wanted to share my work on the backsplash kitchen screen. Doing it for the first time!Lessons that I learned: * it worth to buy a laser level * if I had a proper tool to cut tiles it would be much easier (I had a manual tile cutter, a tile saw, a tile nippers and a multi tool) * to clean excessive adhesive right away * it was much easier to use my hands and fingers to apply a grout * switch off the power when working close to the sockets (the adhesive dropped inside the sockets and the circuit braker tripped - apparently the live wires were loose, had to disconnect the socket and clean it) * use big cheap bin bags to cover the surface On the next day after fixing all tiles I noticed that one tile, which was cut, cracked. I was very upset and decided to take it off and replace. Likely, managed to do it. One thing is bothering me: I tiled it right to the painted plasterboard (the paint looked solid though), didn't sand it. Also I sealed all open edges with a silicone. Hopefully it won't come off with the paint, would be very unfortunate.”