take it from someone who started using gear too early and don't do it. At 18 years old and 50kg you still have so many natty gains to make and how long have you been training ? Do you have your diet in check. The key to building mass is diet. eat as much good food as you can, post your diet in the "ask 3j anything thread". By running a cycle now you run the risk of shutting down your natty production but also you will most likely lose the motivation to train without gear which at this stage in the game for you is key.
As for training I don't know your routine but try stick to heavy compound exercises. You need to build a base level of strength before you start isolation work.
Now, your probably going to ignore the advice on here because your 18 and judging from the thought you put into that cycle based on the different compounds are pretty dead set on this. If you do, at least we can do some damage control.
1- Don't use all those compounds. You'll never know whats working for you and your gunna be hounded by side effects.
2- The doses are WAY too high for a first cycle.
3- Don't run a 16 week cycle for a first cycle
4- Do you know what a PCT is ?
5- Post your meal plan.
6- If you must run a cycle run:
W1-12: Test e 400mg a week
W1-12: Arimidex 0.5 mg m/w/f
PCT: Clomid: 100/50/50
Natty test booster of your choice (personal preference) my personal fav is HCgenerate or Bridge
Nolvadex: 20/20/20
Good luck dude, welcome to MC