I have had it for 12 years or so. I have adjusted to it but it took a few years in my case. In my case, it faded into the background about 10 years ago - but then came back with a vengeance 3 years ago when my air-bags deployed. You might try "tinnitus retraining therapy" - where "TRT" trained audiologists give you a "hearing aid" like device which makes either white or pink noise for a number of hours a day. This has reportedly helped some people to adjust quicker.
I realize how hard it is to just "ignore" the sounds - but - believe me - they will fade into the background. You may always be able to hear them if you try - but your brain will eventually ignore them -- more and more over time. and - "TRT" may speed up that process. best wishes. rik...
I suggest you see an ENT, tinnitus may indicate a hearing loss.
I used a white noise machine to mask it. I am cured now (see my Journal entry).