I'm gonna start light 200 mg a week to see how I feel. I'm probably going to blast 400 or 500. But probably around 200 most of the time for cruising
You should definitely do a lot of research, one thing I've noticed that in the past 5 years or so is that the "less is more" mentality surrounding steroid cycles seems to be getting more popular. A lot of people (MPMD, Anabolic Doc, Greg Douchette, etc.) are steering people away from just blasting 500mg/week right out of the gate and opting for something around 350mg/400mg depending on how your body reacts to 200mg. TRT already enhances you beyond 99% of the male population considering you don't have the same peaks and valleys that a natural would, so you will see improvement even if you do keep your doses "low" (relatively speaking).
Thorough blood testing is critical, and you don't just want to test your Test/Estrodial, you also want to keep an eye on HDL/LDL, RBC, HCT, PSA, iron, etc. when you're starting out to see how your body reacts.
Lastly I've done a lot of research on getting off TRT and from what I can tell it can suck but 99% of people are able to recover to their previous levels after stopping TRT even after years. I'm not sure on the difference done when you're blasting and doing crazy amounts of gear, I would imagine it's less but to what degree I have no idea.