I hope you do use testosterone with trenbolone? but considering the questions you're asking... i assume you shouldn't use trenbolone altogher. that's because tren is a steroid for professionals, but you seem to be a beginner. For testicular atrophy use HCG. 500-1000 IU 2-3x a week.
If you're sensitive to estrogen (how do you know it?) then arimidex might still enough. But clomid/arimidex/letrozole are all useless to prolactin. you need cabergoline.
Also, you may want to drop the use of all steroids and start a PCT. Clomid is helpful at stimulating semen production, but you better use it for PCT