You want to test estrogen, not Total estrogen. I’ll bet your Total T 3 days after your injection are >1500 ng/dL along with really high estrogen levels. This might not be a problem right away but over time it could develop into a problem.
You’re injecting 200mg all at once and this can spike hormones really high, injecting smaller doses generally decreases the hormonal spikes. You will need to manipulate the injection frequencies and the dosage to get the desired results, the AI isn’t necessary or recommended.
Losing weight can help in lowering estrogen as well as adjusting your TRT protocol.
Your body changes as you age, what works now may not work later.