Since 2011. I had 2 success stories since, but this time I feel its not gonna happen. First time after 5 years got to about 50% improvement. Lost it all in 2019 even worse than onset, got 30% back until a week ago was hit with a super bang (a form of firework) and im worse than ever now. This time it feels like hopelessly stuck on overdrive tinnitus gear. Could possibly be Travis Henry level now.