Fist it's good to hear you got LUCKY and your system recovered naturally after a Deca cycle with no test.You will learn that is a BIG no no and you wont get lucky forever. Ever hear of Deca D*ck? That is from taking deca alone or with NO Test.
I hope at least your Clomid was real because your activate extreme is nothing but an OTC bunk supplement. Your body did the work, nothing to do with the activate.
Test is a good place to start. Read up on the beginner cycles and also read the PCT stick notes above. This time make sure you get REAL PCT and not anything OTC.
There is no reason to taper up or down. Run your cycle for 12 week, not 15. They gains diminish greatly after about week 12-14 Tapering up or down is OLD school and really no reason to do it. Using less your body is still shut down and you are only lower your levels the last couple weeks and not doing anything to re start them.