Just my opinion... if you're 5'7" 150 lbs and "need to cut" plus only 3 months training, I wouldn't be looking to jump on aas. Spend some time learning your body in regards to training and nutrition.
Aspirating is a smart move. Takes a second to do and lets you know if you're in a good spot. If it's difficult to pull back, you're good to go. You'll know if you're in a vein, the blood will pour in the syringe. Then you just simply relocate.
This tells me you're in over your head. That's common knowledge and something you should absolutely grasp before you run a cycle. In short, you need an AI to keep estrogen in control. Running test puts you at a higher conversion rate therefore elevated estrogen levels will occur. Running an AI...
Thats some shit bud. Sorry to hear. It's a rough process but you'll make it through. Just move forward, put the bad behind you, and take it out on the weights.