You may feel great with a total test of 4,500 but it is certainly not good to be that high for a long long long time supposedly. I think that finding your sweet spot within range is the best thing when on TRT but with that comes patience. It could take a year or more but at least you could keep a diary of how you feel at what doses and what blood levels. After you are properly dialed in for a bit, run a cycle or something. Remember, the typical TRT starting point is 100mg a week, 500iu of Human Chorionic Gonadotropin (HCG) and no Aromatase inhibitor (AI) unless your estrogen gets high. Personally, I'd start over and forget what the docs are saying unless they are the ones injecting you. The last thing ypu want to do is hurt yourself switching stuff up all the time, you owe it to yourself to be patient.