This is great info Goal. Once my 12-16 weeks is up, I would then do a PCT? Once all this is done do I keep the strength and endurance gains I acquired over the cycle? A good looking body and big muscles are a bonus, but will the strength and endurance remain?
Sorry if this all seems like dumb questions, but I don't know much and I want to educate myself before I try.
You will wait for 2 weeks after the cycle and then begin the pct. You will not lose all the gains you made, you will definitely keep a good amount as long as you keep eating enough food and training hard.
At your age you could also consider talking to your doctor about HRT if your natural testosterone levels are low. This way you will not worry about pct and will keep all the gains.