Sorry to hear that man..so your planning on trt then after this blast?maybe try trt for now till you get your body primed shed some bodyfat and get ready for a decent blast..
Please read extensively on all substances you put in your body and make decisions based on how important they are to you..500 mg is not bad man and with right diet and training I could see 10-15 total weight gain..remember some is glycogen and some is bloating ...