A lot of guys go through what's referred to as a TRT honeymoon period where you have symptom relief or improved libido followed by a period of feeling run down, it's perfectly normal since your HPTA is now shutdown. It take a lot of guys months to begin to feel changes, I'm almost 6 months into TRT and changes are happening slowly.
Did you have SHBG tested? This will aid you in finding what protocol is best for you, a lot of doctors fail to run this important test. I would mess around with dosing first before going to an AI, then if you're unable to lower your E2 into range you may require an AI. Just be sure not to make changes to your protocol before you reach a steady state each time you adjust your protocol, steady state is usually reached in 4-6 weeks.
If you make changes to often you never know what works and what doesn't.
