Since I've gotten tinnitus I've had it go worse from time to time, usually whenever I've got a headcold/ear infection, which seems to have been occuring way more frequently since it happening as well. Take a bunch of magnesium tablets, nmda antagonists are supposed to help with it, most effective in the first 24 hours after noticing it.
Benzo's will help to calm you down, more stress will only aggravate it, but it won't fix the sound. Try to avoid stimulants, just take a lot of anti-oxidants (like ALA), multivitamins (especially A, C and E) and healthy food. The only thing that really stopped the noise for me was amitryptaline, but you can't take that for extended periods of time.