Bro....
you are over training big time.

The main thing to remember is that your recovery time is, if not more, as important as training.

If you are trying to get definition and lose some weight.....
have you thought about a whole body workout routine with minimum rest between sets and reps?

Also, there is no problem with jogging on your rest days....you are not trying to bulk.

I'm not quite sure what they mean with glutamine and "muscles dont break down".

If this was the case, then I wouldnt use glutamine. After all, you want your muscles to break down so the can rebuild and become stronger and bigger.

This is called Microtrauma, which is tiny damage to the fibers, is seen as the basis for hypertrophy (an increase in muscle size, due to the enlargement of the size of the cells). When microtrauma occurs (from weight training or other strenuous activities), the body responds by overcompensating, replacing the damaged tissue and adding more, so that the risk of repeat damage is reduced. Thus, muscle growth and strength is achieved.

Another key factor to consider when trying to cut is protein. Its as important as when you are bulking.

After all, you dont want any Catabolism of your muscles
I think this is what was meant with glutamine.