It's only the first week, man. You won't feel much besides placebo effect in the first week with a long ester.

But if you're 5'9 and 150lbs, you have bigger problems than possibly fake gear.

What's your diet like?

Honestly, the best advice I can give you is to discontinue the cycle now.

You need to learn how to eat/train to gain muscle before even thinking about AAS.