fisrt off, buy a heavy bag. the best way to get better at punching is to punch. Second, always watch your form. Consciously think "foot, hip, shoulder" when you punch. you drive off of the foot, rotate the hip, then put your shoulder into it.
in thai boxing or boxing, there is also the concept of sitting down on your punches.
i'm nobody...i'm nobody. i'm a tramp, a bum, a hobo... a boxcar and a jug of wine... but i'm a straight razor if you get to close to me.
-Charles Manson
I will punch, kick, choke, throw or joint manipulate any nationality equally without predjudice.
- Shonie Carter