You could try .5 Arimidex and 5 mg Nolvadex. The two combined will most definatly block estrogen. If your already noticing gyno of feeling sensitive than you could try .5 Arimidex 30 mg Nolvadex for the first 3 days, 20 mg next 3 days, 10 mg until side effects decrease. Than you could invite the idea of going down to 5 mg Nolvadex.
The Nolvadex isnt always neccessary, so dont sweat it if you cant/dont have it.
Arimidex is the strongest anti e on the market I would start with the lower dose.
Best of luck.