Does using aromatase inhibitor causing permanent infertility on men due to imbalance hormones?

[Ultravisionary Bism]

Three names of the drugs:
1. arimidex
2. aromasin
3. letrozole

Tbh i want to use the letrozole to get insame amount of HGH.
Is it safe ?
Could letrozol make my hair gone?
How do i convince my doctor to give the prescription.
This is heightpill topic because i really need it also i will turn to 18 yo in 5 month!!!!