I know you probably can't understand the thought right now, but you really do learn to just live with it. Your brain will have its fill eventually and it will start to slightly tune that frequency out. Silence is the enemy and sometimes, I'll sit in silence for several minutes before I realize I'm hearing the ring... but once I hear it, I can't un-hear it.
Like I said, I have music (or a YouTube video of someone talking) going on all the time b/c it takes very little real noise to mask even a loud ring. The brain is amazing and dumb at the same time.
From what I understand, if you have it, you want the high-frequency tones... some people hear constant, low rumbling freight train noises. I can't even imagine.