The bathroom saga continues ... I tried to tile some of the wall myself and got myself well and truly wound up. I'd gone through 5 tiles before I remembered how to use the cutter properly. Then I got it right but got the cuts wrong size wise. I eventually got the hang of it but I couldn't get the tiles to line up properly with the spacers and after about an hour and a half of farting about I drew on some wisdom ... 'it's not worth getting further stressed over. Accept that you can't do this task and tidy up.' And that's precisely what I did.
I'm going to have a bath now and try to unwind some more.