Only going by the threat topic without reading your post. And for reason. There is no way to know that answer, but the likelihood is very high being as you're not finished developing physically, which could stunt growth, bone density, brain development, and a host of other things like sterilization and impotence. You don't want that at any age, especially at 18-25. You're at an age that your natural testosterone production is at the highest point it has been since you started puberty. Roughly, age 17-25 is a period for a second burst of sex hormones that leads you into manhood and that will be the last big pulse your body naturally produces before it levels off. Don't risk it. You came to the right place to get assurance, so use the advice given wisely and wait. You have many many years to play around with anabolics. Once you start, you'll more than likely stay with it. Make use of your natural "steroids" while you still can! I guarantee you that any of us with low t would love to be in your shoes right now. Eat big and lift big.