Your E2 is through the roof. Is this the sensitive assay? If not, it's the wrong test.
At any rate, I wouldn't change your dosage...I would just inject every 3.5 days if I were you (100mg every 3.5 days). This will help lower your E2 naturally without any AI, and then you could retest your blood in another 6 weeks or so to recheck.
How is your H&H, your RBC count? How is your PSA? Post up full labs.