my weakest thing is standup boxing. not kicking or anythin just punching only . my coach is teaching me and im getting better but the problem is i am only 140lbs and like 5'6" tall. so most ppl i train with and fight are taller and have more reach. but normally i dont care cause i will kick them and then punch after. but since my weakest technique is plain boxing skill my coach has me mainly workin on that . fighting him and others with only hands. i can hit pretty fast and hard but almost everytime i try to box my coach i cant land a solid hit. part of it is that he is a trained fighter for a long time but i am not too bad myself and i should be able to hit him at least a few good shots. he is like 240lbs and a lil taller than me. i def am faster but everything i throw he basically blocks. he tells me to go inside and try to hit it but every time i do i just end up hitting his gloves which he blocks me with. i can land good hits on other ppl who arent as skilled but what can i do to try to box taller guys with just hands. no kicks or grappling. if i try to really reach up i get off balance sometimes too.