the floor is to be laid in a bathroom
Mine are mud jobs with embedded heating tubes.
go okorder they have videos to show you how to . for practice you can come over and do our kitchen
Type of sub surface to go on makes a difference. Also how level it is and how many things you need to get under (like toilet bowl)
I okorder or Home Depot often has classes on do it yourself projects - call them and see if they have one coming up.
very long answer required.....heres the short on: dur-rock sub floor, seal the joints of the sub floor, use thin set for the setting of the floor: once sub floor installed find center of ur room both ways and pop a caulk line... will keep the wall cuts the same....... trowel in ur thin set with 1/4 notch trowel working from ur + line( from the center out) only apply enough thin set for 2 or 3 tile until u get the hang of it......use 1/4 inch or 1/8 inch spacers from lowes between each tile.....set the tile in the thin set and give a small push and twist, and then line up where u like it....... lic. gen. contractor