I don't know if this will help in anyway I am a 27 yr old and have had Tinitus which became worse after a Kidney operation,
I have found there are places which can do different tests from frequency range to loudness it all depends on the level of help/expertise in your region to what support you can get.
I have been offered a hearing aid as my right ear is very poor I must also add that both ears do not protect themselves against noise properly, I was getting agitated when my neighbour would put a radio on in another flat or if there was lots of noise going on.
Unlike most of my age group I never found sitting in a room with Tripple sledgehammer music, aka Rave, Metal, Goth to do anything for me,
I have not been in positions that could damage my hearing in this way. It is also not genetic as far as I know,
The type of hobby I have requires soldering and concerntration so for those particular things I use ear plugs. Please ask a Dr before using ear pieces as most Tinitus sites highly recommened against ear plug usage.
The other treatment offered is ear pieces that generates a static noise that gives me something else to focus on.
I hope that someone will be able to find a treatment as it is an awful condition to live with.