1mg/day would make you mentally ill.
Estradiol is not something that you want to take too low. With low T, that dose would be more harmful than for a guy with higher T.
You do not need much of an competitive AI like arimidex when there is not much T to aromatize.
A dose of .5mg/wk seems to be a good trial dose for guys with lower T. Best taken every other day [EOD]. With tablets, that is hard to manage. This is where a liquid product can be better that can be dispensed by the drop.
This may improve T. But you will definitely feel a better T:E ratio. Positive effects can often be very apparent in 10-14 days. Libido is the fastest responder.
These issues are best handled on the over 35 lifter forum with the other TRT traffic.
Anastrozole over-responders: Some will get very low E levels from typical dose. These guys will feel like crap. They need to stop dosing for 6-7 days then find if 1/4 or 1/8th of the expected dose feels right.
With lab work, adjust dose to get E2=22pg/ml. Example: if 0.5mg produces E2=28, new dose should be 0.5 *28/22. This will also correct a dose for E levels that are too low.
If using Labquest, you need to spec 'ultra high sensitivity' or you may get a result that states E2<28 which is not useful.