I didn't check that my bathtub was level across the narrow end before I started tiling the wall above. Now that I'm finished tiling there is about a 1/4" gap between the tub and the bottom of the tile on the left of the end and about 3/4" gap on the right of that end. The 1/4" gap is what I was going for and was going to fill with caulk, but don't know that I can or should fill the large gap with caulk. Debating filling the space with grout, but not sure how that would work either. I felt like a real doofus when I saw how it turned out. Any suggestions?