Can you mask your tinnitus? If so what kinds of things mask it, does the shower mask it? If not then it's pretty loud.
As far as likelihood of going away, there is not data saying one way or another. It does seem, however, that noise induced tinnitus is the least likely to go away especially if it's long term noise exposure. I think volume does play a huge roll in how quickly people are able to habituate to their tinnitus.