hahahahahah i think i love you. i have to admit that i had an awesome coach on squatting. i don't really teach it to others a lot since i don't train many pl'ers; normal populations don't usually break parallel on squats. to define the leg/hip/glute area, heavy squats, lunges and stiff legged deadlifts are the absolute most effective exercises. but again, if you're eating like crap you won't see the results you're looking for...ever.
unimitated, you don't sound like you have very much muscle mass to begin with; 5'10'' at 135 is TINY compared to most women who lift. (as opposed to, oh, 5'6'' @ 155 LOL). you could prolly put on quite a bit of muscle and still look long, lean and feminine. PM me if you want to send some pics for an honest critique, and we'll work you out a plan.
~KITTY

I am 28 years old, 5 '10, and 135 lbs. I have been working out for 7 years. I have never been have never been happy with my legs. Someone suggested trying Winstrol. I have never used anything before. Should I be worried about liver damage? Should I mix another substance with the winstrol? I will be thankful for any advice!

I'd look for a different alternative. Steroids don't help you "spot reduce" and simply get you a better "fill in the blank". I'd suggest posting what your workouts look like and what your diet consists of and I can bet someone here will give you some great advice on modifying both to get you your results.