Let's see. You were a junky in High School - glad your better now. You just stopped smoking - that's great. You are not going to listen to anything I say, nor anyone else but I'm going to waste my time anyway.
First - You have been lifting for a year. What are your lifts like? What's your routing like? The fact is you don't even know what works and what does not work. You have no idea how your body responds to different approaches. This should be your focus, along with...
Second - your diet blows and that's the main problem. You have fast metabolism and only eat 2,000 calories a day? Are you ****ing kidding me? I'm in my ****ing 40's and if I'm not eating 3,000 calories a day I lose weight. I routinely eat 2x the calories you do and I'm 3" shorter. You don't have a metabolism problem, you have an eating problem. Quit eating like a god damn supermodel and see what happens. Try this trick...eat what you normally do and add 1 gallon of whole milk per day. Do that for a month and come back here and say you didn't gain any weight. It won't happen unless you lie.
Third - go kick your brother in the nads, and when he gets back up, do it again. This guy is an idiot for even suggesting gear.
So here's what's probably going to happen. You're going to pin all of that gear you have, lift a few times per week and eat like a ****ing supermodel. You didn't mention PCT, so you'll probably just skip that ****. Then, in 4 months, you will be be completely shut down, depressed as hell and still 5'11" and 160#. You won't gain a damn pound of anything because you don't know how to eat - and you probably don't know how to lift. And the magic juice won't solve any of those things. So ignore of all of advice and just go do what you want, because you're going to anyway. Just don't come back here crying because it didn't work out.