No. I keep going round in circles - looking for all the tools I need (including a 600mm tile cutter) to buy or hire (more pressure if hiring), and then thinking I should just pay someone (had a friend who is a tiler lined up twice, but two weeks dragged on and then I didn't have the cash).
Plus, I have the nagging doubt that will will do something wrong and it will bug me for all eternity. Just things like corner overlap keep me awake at night.
I'm in North London.
Sorry op, can't offer any practical help.