This is no joke. If you are going to put drugs into your body, do your own research on them. Never go by what your friends did or tell you. You're at a age (18) where you don't need juice to get solid gains. You've got test, GH, IGF1 producing inside of your body at high levels naturally right now. Take advantage of the free ride! All you need is proper diet and you'll grow bigger than your friends that are doing these deca/winny cycles. I've come to find a lot of my friends are like the Iraqi Minister of Information when it comes to juice. I did my own research and I know more than most of them now. I never give them advice anymore cause they know it all. I would rather spend my time working out instead of talking to some idiot in the parking lot.
Everybody chant after me: "Food is the most anabolic substance you can put into your body".
If you start eating 250g of QUALITY protein a day (split up into no more than 40-50grams per meal) and train very hard, you will gain 10-20lbs in the next month. I can almost guarantee that if you eat quality protein and train correctly..Eating sufficient protein cannot be stressed enough. The reason why you need all of this protein is to put yourself into positive nitrogen balance so your body becomes anabolic. Also you need the extra protein to build the new muscle tissue. If you don't have the material you can't build the house. Eating is the key and most people don't follow a proper diet.
Deca cycle is not good by itself. Just PCT now and eat. Juice isn't the answer to your intial gains. You'll never reach your potential if you don't build your base before getting on any AAS program. In fact, you'll probably hinder yourself and never get the gains you want.
BTW, having a fast metabolism is not a reason to hit up McDonlads. You have to save your appetite for quality food sources and don't waste it on junk food. It has nothing to do with fat since that isn't a issue with a ectomorphs. Think of eating crappy foods as muscle killers. They are taking the place of quality proteins and minerals in steak, chicken, fish, etc. I would stick to steak for the next month. Top or bottom round is a very inexpensive cut and it's a great protein source. All meat too, hardly any fat to trim. Eat big and you'll become big. Good look bro, you'll get there. I use to be the same size as you around your age. I never did AAS until I was 22. I still think that was too young when looking back now. I should of waited until 25. I got great gains from 19-22 with protein and supplements. I went from 160 when I was 17 to 185lbs by the the time I was 20. And I didn't know shit. If I would of ate more protein with a proper diet, I could of saw those gains a lot faster.