How do I get nice thighs?

I am 20 years old, 5 ft tall. I am very active I walk an hour a day, and I am a dancer. But my legs from my hamstrings are not nice, and the part where the legs meet together in the middle is fatty. I tried doing squads for a whole month everyday and nothing. I have a big and I don't want it to get any bigger either...help please? I love short skirts but I am to embarr to wear them! I want quick results so I can show off legs this summer. Help please!!!