The tradition is that it takes about 10,000 hours to become a skilled worker. If you work a 40 hour week for 48 weeks a year, after 5 years you will have 9,600 hours experience.
Your speed will improve, but not noticeably after just 256 hours tiling (4 bathrooms taking 8 days).
I completed a short tiling course. I've done my 10,000 hours, and learnt from a lot of mistakes. My first few bathrooms took 7 or 8 days too. I can now tile 16m bathroom in about a day and a half (if no complications) but often spend as much as a day on prep, and a half day grouting and finishing. A big boost to my speed came from working with other experienced tilers. Some very simple tips can make a massive difference to your speed - but I will leave you to get that experience for yourself!
Your speed will improve, but not noticeably after just 256 hours tiling (4 bathrooms taking 8 days).
I completed a short tiling course. I've done my 10,000 hours, and learnt from a lot of mistakes. My first few bathrooms took 7 or 8 days too. I can now tile 16m bathroom in about a day and a half (if no complications) but often spend as much as a day on prep, and a half day grouting and finishing. A big boost to my speed came from working with other experienced tilers. Some very simple tips can make a massive difference to your speed - but I will leave you to get that experience for yourself!