With squats you have to be very very careful about getting the form perfect. If you don't do that, you'll
never be "built right" for them.
They are possibly the largest growth promoter for the entire body, however, so learning them
is worth it, even if you have to start with the unloaded bar to get your form perfect before moving up. Watch yourself in the mirror and/or have someone who knows what they're doing monitor your reps to tell you what is/is not right about your form so that you can correct it. Correct form means optimal growth stimulation and ultimately maximum poundages and progress, so you
want to place it at a very high value...
Basically, the bar should always be directly in a line straight up from your heels, your back should always maintain an arc, and when you push up, you should be pushing up with the back half of the foot, not the front. So, you'll push off your heels. Push your chest out and make sure you breathe. Go at least low enough that your thighs are parallel to the floor. Don't pause at the bottom, at the bottom should almost be a "bounce" back up. It's benefits make the squat well worth learning properly. You know you want the heaps of muscle.