It wouldn't "screw you up" since prime is non-hormonal. What is your diet like? If you choose to do the stack, make sure you are intaking enough carbs with your meals when taking anabolic pump. I can say I've done AP solo and loved it, the stack and loved it as well. I think we would get a better idea of what you wanna do if you posted up what your diet, goals, and workout regiment looked like. Jack3d is also a great product to try for pre-workout energy, endurance, and pumps.