I have had tinnitus all my life, and honestly did not know the ringing wasnt a normal thing until I watched an episode of Archer. Becoming truly aware of it was a terrible day for me.
Generally, it isn't something that is treatable, but in my opinion it is better to have it at an earlier age, when your brain is more adaptable, as it makes it easier to adapt to the constant ringing, and learn ways to tune it out.
If you need to, get some sort of white noise/nature sound generator and keep it playing during the quiet times, and focus on those noises. I find that tinnitus is worst when you are focusing on it, and the more you think about it, the more you notice it.
One thing I have found to NEVER work is mentally playing with the volume/pitch - those sliders only go up, and stay up until I have focused on something else for awhile.