This may be harsh, so I will apologize in advance. You don't need AAS, seriously. You can't be consistent with your diet and training and you allow things to distract you from training. This is not a reason to run out and get juice. Don't be stupid.
You don't even have to try hard to gain and maintain 180 or 190, all you have to do is train hard and heavy. I know this for a fact, for a long time I thought I couldn't gain weight. As soon as I switched to powerlifting, I gained weight like crazy and was eating like crap. But I was eating, that's the point. I used the same diet my son at the time was on, if I can fit in my mouth, eat it.
I weighed 150 five years ago, and now I way 200 without even trying. Drinking and partying has nothing to do with it. Do the work and leave the juice alone for now. What's the rush? Where are you going? Shut up about your girlfriend leaving you and starting a new job. Big fucking deal, act like a goddamn man and stop crying. Your girlfriend leaving you is probably the best thing that could have happened to you. I'll never understand you single guys and your "girlfriend" problems. Makes me want to slap the estrogen out of your sorry ass. Bottom line, the only juice you need is apple juice.
NOW SHUT UP AND TRAIN!!!