Well, I'm not trying to be sarcastic, but this is why it's important to do some homework and to research the proper techniques before doing something for the first time. My dad once told me,"Just because you're not a craftsman, doesn't mean you don't WORK like one."
You could remove the baseboards and tile the wall. There are tiles that are curved at the joint between the wall and floor-----you've seen these in commercial installations. Those may work. It would be nice if they had a bullnose one them to make a smooth tansition onto the wall. But if not, and you don't like the look of a tile ending on the wall with an edge, you can grout it with a 45 degree. I've done that several times and it looks nice.
I just removed the linolium from two bathrooms and put in ceramic tile. We did not remove the baseboards before laying the tile and being a first timer at laying and cutting tile I have gaps where I didnt get the tile all the way to the base boards. One bathroon turned out really good in spite of the gaps because I put quarter round molding over it. The problem is the other bathroom has rounded corners. How can I cover the gaps with the rounded corners without having to start over. The gaps are to large in places to just put grout or caulk. Help!!!!!
