Ok before I start telling you the problem I'll have you know that I have :
Learned sport Taekwondo for 4 years
Learned brawl Taekwondo for 2 years
Learned Ninjitsu for 1 year
Worked out at the gym for 1 year
Ok,the problem is that I am really big for my age,I'm 13 and a half years old and I am 179 cm high without my shoes, have wide shoulders and I weigh 81 kilograms,now the real problem is that I am superior in strength to other people of my age but I lack in speed when it comes to general movement in a sparing match.I have tried running 2 miles every day and I can beat anyone at running but that didn't improve my battle speed.
Any ideas as to how I could improve it?