If it were me, I would take the deca drol on top of cycle assist; their "advanced support" is practically bare minimum, not nearly as extensive compared to CE cycle support, plus depending on where you get it from you'll save a good amount.
Let's take a quick look at their e-control:
4-ad and claims it contains 6-oxo; if you're going to spend that much money I'd recommend formestane at a cheaper price, either formasurge or formastanzol will do and use that during PCT. Looks like the ppl who were taking this didn't have a clue themselves reading around on several other boards, but whenever I see PH and OTC PTC, I'll go into Sherlock mode, because that doesn't sound right; especially when they say well you already bought a hormone, you clearly know you'll get success, let's also sell you a wannabe imitation "serm" in a pill; for the same amount of money you spend on something hypothetical you could get what's tried true proven science (not bro-science, especially when **** hits the fan, you'll see how quick they are to help as opposed to ppl here that will not only help but steer you in the right direction; other than, well if that product doesn't work, here's your money back, get another one. At 21, 22, 23 you don't want to mess up your endocrine system, otherwise that's gonna wreak havoc on your body in ways you couldn't fathom.
I don't mean to say any of this to scare you or to make aware overall growing distrust in a lot of companies (it's pretty evident if you read around here), but at your age, somewhere anyone else will say you don't need a PCT and you could go all natural with otc test boosters, fck that. Now, that's not to say you could recover naturally, but why take that chance? If I gave you a cheat sheet for a test and allowed you to use it during your exam, you're gonna go through everything right? I was once worried too about hoping on a cycle for too many reasons, after taking the steps and then even going to a far extreme of the spectrum, with the amount of support supps and overkill PCT all that came back was high cholesterol and my libido strength was compromised for a few weeks.
I know this is a hypothetical situation, but I'm just giving some advice if you were to start; of course there's a lot more information to be researched and I don't mind helping out answering, but I still want you to even look that up and one day down the road, you're gonna learn/experience so much it's gonna become second nature. Once again I apologize for the plethora of information, but I find it necessary to give you a good heads up and well after reading so much bad advice being thrown around on other forms, maybe I take it too personally to make sure ppl do the right thing and I've made my voice very clear to reps/admins on other boards about negative life changing advice they offer. My bad for the rant and you can either post here or PM and I got ya.