So I'm tilling the front hallway (just about 4feet in from the door).... when I went to home depot, I bought some Tile Adhesive by mistake. I used the adhesive since I had it. Now unfortunately, when I stepped on one tile, it cracked. This is probably due to my lousy tile-work, or is it because the glue set's too hard and uneven?
Any tips/suggestions are highly appreciated.