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P UNIT 1980
Mate the only advice I can give you is to fook off with the weights and get back to basics. Push ups, sit ups, running, pull ups and punch the hell out of a bag.
Do your push ups in sets of 30 and with a minute or 30 second rest in between each set until you get to 200"do them with your knuckles to strengthen your fore arms and your fists". Same with your sit ups or abs exercises if you can do more than 30 then do so but do them in sets. Do this as a pre workout like when you wake up or something "if possible" almost like if its not even part of your workout.
If you have access to this wear a weighted vest during your workouts. When you run focus on sprinting to get that speed/agility/flexibility in.
Go a few rounds with the bag and try to focus your punches by using the force of your hips, work that jab go ala rocky and have a moment were you only use your weak hand to punch. Finish a workout by punching the hell out of the bag constantly for at least 3 minutes. If you can get inside a ring then shadow box around it to work on your movement and get used to using the ring.
Use resistance cables to stretch out your arms and your legs to help with your flexibility.
If you can get someone to spar with you let them hit you and work on your breathing upon the impact of the hit, wear your mouth guard through all of your workouts so you will learn to breathe with it.
Last but never the least get that jump rope in.
I once had to do a tournament for TKD for charity and my instructor had me doing this basic stuff I got through the tournament with the most points. Good luck amigo!