If I was scared of tinnitus, I'd be terrified all the time!
As others have said... true tinnitus is permanent. It doesn't go away, it doesn't get better, it can only get worse! Protect your hearing!
I first noticed mine when I was around 30 a couple years after I got out of the AF. Worked around loud equipment for 8 years in the AF, did my share of loud rock concerts, had a car muffler blow up when a car backfired in my garage that did something to my left ear. (I can't hear crickets chirping with my left ear! Complete silence at that frequency.) I knew I had tinnitus, but didn't think much about it.
Then I drove a convertible with the top down 95% of the time for about 10 years. Did you know wind noise is another thing that can cause hearing loss and tinnitus? Yup.
Eventually, I really started getting annoyed with it and researched. There's really nothing you can do. There are "noise therapies" that can trick your brain into ignoring it somewhat. Just distracting yourself from it does the same thing. I really only notice it when I'm sitting in a quiet room and think about it. It is what it is.
BUT, I now wear foam earplugs for anything and EVERYTHING. If I'm firing up a power tool, vacuuming the carpet, going to see a movie (movies are freakin' LOUD these days!) or a concert, riding in a convertible with the top down, absolutely anything that's loud... the earplugs go in.
Oddly enough, wearing earplugs makes my PERCEPTION of tinnitus much worse. No outside noise just makes the ringing seem louder. But, at least I know I'm not risking making it any worse by exposing myself to loud noise. When I was younger, wearing hearing protection was usually too inconvenient... can't tell young people anything!