descipline dosent do much in the real world...
Goat: i would say that you are missing nothing, but who is going to teach you all of this?
If your really desperate go to some MA school's and just say that you want to watch a class .pick up everything you see free of cost. also ask if they have free trial sessions, and after its done (if there are any) just tell them your not interested
if not talk to some instructors and try to strike a deal with lower pay for fewer classes.
Another idea is just go to a school and ask some students if they would like to free spar and pick up what you can from fighting them.
Hope this helps