Great to see this lab work here!
General: If one injects once a week, levels are changing and lab results are then largely defined by when one does the lab work. Injecting twice a week always doing labs halfway between injections lessens the noise from lab timing.
You are injecting twice a week.
Your dosing needs to be consistent so results are not showing dose timing or missed dose errors.
I do not know if aromasin is up to the task.
You can try doubling the dose, if that does not work, try 4 mg anastrozole a week in divided doses. If E2 crashes, stop for 4 days then resume at 1mg/week in divided doses [you would be an anastrozole over-responder].
Good target would be E2=22pg/ml - 80 pmol/L
If getting near the above, expect to feel a real difference in 5-7 days. If feel great for a day then crash, you are an over-responder.