Please help thanks

I've just started GOIN to gym about 8 weeks ago I'm 6 foot 12 and half stone ive started usin omnadec which is 200ml of test and 200 of deca in a mixed vial i take 1ml per week And I eat all the proper food and drink beef protein shakes along with creatine liquid under tongue in morning I was 12 stone wen I joined the gym so ive put on half a stone in 8 weeks will I finish this 10 week course of omnadec and take a break from it or buy more and stick to same dosage or do I have to use something else I really want to bulk up big ive got shsoe now but I want to bulk fast can any of you big chaos help me out here thank you for your time

Please help thanks