If you wanna change yor body, work your shoulders. Getting bigger shoulders is the fastest way to chage your phisique.
I agree with streemline, But if you wanna change, I'd suggest doing mainly compound exersises like squats, dead lifts, chest press (flat only to start with) Arnold press, Lat pulldown (wide grip), vertical and horisontal shrugs. They your bi curls and tri extensions.
Do theses for 3-4months to give yourself a grounding in weightlifting. This will not make ur muscles instantly huge but will make them (and your body) strong. So in a few months you can change to more isolation exersises and you'll get more benefit from them.
also with a compound route you'll be burning more cals, even when resting.
Drinking is fine in moderation, If you come out of the gym, make sure you've had a proper meal and 2pints of water before you start drinking. And if you can, swich to red wine.
I also keep an ingury diary. make a note of any aches or pains, so that you can change your workout to suit how your body is managing with ur training. Aches and pains the next day are normal, but if you have any pain during a movement, then you should stop and see ur gym instructor