As much as I would like to give you grief for using at 21 years of age, especially since you have eluded to the fact that this isn't your first cycle either, I will refrain and respect your post. That and I'm sure you will inevitably be bombarded by other members haha.
1. INCREASE THE TEST! hit up at least 400mg. If money or availability isn't an issue, then I would suggest 500mg.
2. CABER. You haven't made any mention as far as your current supps, most importantly your cycle support supps. This fact alone will also force a lot of members to flag you for not being more educated on before going to the darkside... Anyway, Decca is a progestin, therefore you can lose your sex drive and aquire gyno. Caber is can be found on a lot of research sites, so just GOOGLE. .5mg every day or every other day will be fine. Some users prefer use .5 mg every day for a week, then every other day from that point on. I personally do not have enough experience to comment on that. Just fyi, Cabergline is the same as Dostinex, which, like Caber, is also sold as a popular pharmaceutical drug. As far as my own experience with this, it is a wonder drug in the bed room! The best part was the recovery time in between sessions. Something very similar (I don't say exactly alike because some prefer it over Caber) is Prami. Again, sold as a research chem, and is usually cheaper. Be aware, liquid prami is 'SAID' to be less effective because the chemical is unstable in a liquid state. It would be helpful to know the rest of your supps if you can so we can help you the best. Just in case, "cycle support" by AI Sports would be a phenomenal, all around support supplement in powder form that provides full standardized dosages to help provide protection for your major organs including your heart and liver, while also benefiting your cholesterol levels.
Hope that helped ya a bit, keep the forum updated on your cycle and your performance. Bets of luck!