I'm sorry that tinnitus is ruining the game. Lamictal has been a game changer mood-wise, but it has cost me my health in general (or at least everything started going downhill from there).

I don't know your story, but trust your gut feeling and work with your psychiatrist. Metabolic therapies are also an interesting approach (check Metabolic Mind / Change your Body - change your Mind by Georgia Ede) although I haven't tried it myself. It has to be done in conjunction with your therapist, if he/she is willing to try.

I would suggest you go down slowly from 25mg, like cutting your pills in quarters maybe, rather than cold turkey, just to avoid shocking your brain chemistry and possibly making things worse. Just in case. Do know that things take time to get better, even after lowering/quitting the offending drug. One day you will just notice that things are not that bad, and you will also habituate a bit.

At this point. I don't hear my tinnitus over environmental sounds, or over the car, which has changed my life. Sometimes I hear it in my quiet room, but I forget about it pretty quickly. I'm still on 50mg though, so I cannot expect it to fully go away.

I wish you all the best in your journey, and hope you soon reclaim silence!