Gyno/letro

[Whis2233]

I have a lumb under my right nipple it used to be both, been on letrozole for a month and a test booster.  I started how one of the blogs I read on here to do and still in the process I actually needed more letro. My big question is how long can I be on letro is it bad that it's been a month and not yet gone?  I know I waited to long and I regret it now, but can it still go away or am I just needing surgery at this point?  I was at 2.5 mg of letro everyday but now I had to go to 1.25 every other day cause I didn't have enough letro. Since your blog said do it until its gone and if your over 15% body weight then use another week. Just wondering if I can keep on letro until its gone or is it a time thing. And if I am taking so much letro am I going to kill all the estrogen in my body??