Good for you mate good luck. I boxed for the police station when i was at school (nothing great just some fights with other police stations) and also whilst in the navy and i was never particularly good at it. It did teach me how to punch correctly though which i have gone on to develop through my martial arts training, aiming to get more and more power into my shots everytime i train.
Punch power is funny old thing. Ive held the pads for 15 stone dan grade karate black belts and their power was shat because their muscle memory conditions them to pull the punch on impact due to semi contact/point sparring in competiton and punching fresh air in lines. The same class we had a boxer come along who was probably 9 or 10 stone. He then proceeded to displace some of the lads internal organs through a kick shield simply because he trains to hit through the target and uses correct body mechanics.

The martial arts (in addition to judo) i do is more geared toward pre-emtive one punch knockouts (we train and spar for street situations) so power development is something we as a school are always looking to develop.

Good luck anyway mate.