You can actually accomplish a helluva lot. I’m sure I’ll get dogged out for saying this, but buy the body-for-life book or check out their webpage for inspiration alone… and to see what someone your age can acheive.
I did the contest last year and had great results. Here are the results:
The key is to TRAIN HARD. And get your diet in line. You WILL get results if you do these things. The only way that you won’t get results is if you are inconsisten, don’t bring INTENSITY to the gym or don’t have a tight diet.
Also, don’t get carried away and try to follow the advanced programs on here. They are for people who’ve been training for a long time. Find something basic, like body-for-life, and stick with it for a while.
Check out Stuart McRobert’s book Beyond Brawn. The book is fantastic and has a good section on goals for the drug-free, genetically average trainee. These include pressing bodyweight strictly, benching 1.5 times bodyweight (raw), squatting two times bodyweight (legal depth, just a belt) and deadlifting 2.5 times bodyweight. This won’t happen overnight, but you should be able to accomplish these goals in a few years and build a really good physique along the way.
Your numbers aren’t half bad actually, for someone who has only been training 6 months. You’re only 5’6" after all.
Do some extra studying on what to do for spinal stability and torso/core strength. Most people that don’t work out are weak in these areas. If you don’t give it extra attention now, you,re setting yourself up for problems later.