I schooled myself in a similar fashion when I remodeled both of our bathrooms. Must have done a decent job because that was probably ten years ago and everything is holding up well. No cracks in the tile or grout or anything. I pretty much gutted both of them and installed all new everything, even put in a big jacuzzi tub in the downstairs bathroom. The tile was actually much easier than I thought it was going to be. The old tub in the upstairs bathroom was kind of a pain to remove but other than that everything went pretty smooth. I even replaced the entire sub floor upstairs.