Kegeling is different for everyone. From my understanding, Kegeling strengthens the PC muscles to either A) stop an orgasm or B) retain semen so that you can possibly have sex repeatedly. Am I right?

It would seem that you're having the opposite effect. And, in fact, everyone's reproductive system reacts differently to kegeling, I'm sure (and so I've heard).

It's my understanding that you're supposed to squeeze your PC muscles before orgasm.

I would try other techniques such as breathing and mental exersizes. I find them to be much more effective than physical. Sexually, your body is putty in someone else's hands (especially if it's the right person), but you control the mental side. Give it a shot. Look up either Tantra OR Ujjayi Breathing. They're good mental and physical activities that can delay orgasm and make it more intense when it does happen!