Lars,
Yes, there is a good chance things will go back to normal but in the event they do not it's OK! Having tinnitus not the end of your life. I've had it for over 5 years so I know just how you feel! Treat this as a nervous system malfunction (which I believe it is). Do things to be kind to your body. Meditate, go to bed early, use maskers when you need a break (I use an app called Relax Melodies). Watch a guy named Julian Cowan-Hill on YouTube. His ideas changed seriously changed my tinnitus experience! Most important of all, hang on to the fact that this WILL GET BETTER. Your brain will get used to this. Panic will subside and you will move on. Your "normal" will just change that's all. No more different than if you had any other medical condition like allergies, diabetes, etc. Sure you might not go to anymore rock concerts but movies are fine (use cotton - my favorite earplug - for super loud ones like Avengers) but otherwise carry on! Go to restaurants, see friends, anything you want! If the T spikes (at first it probably will) don't panic. IT ALWAYS GOES BACK DOWN. Since getting tinnitus I have adopted a fourth child, learned to rappel, kayak, deep cave exploring, bike race and finished a Tough Mudder race with my daughter's 19-year-old boyfriend! So don't fret. It gets better and you will move forward. Right now it's like (think back to before GPS if you're old enough) being lost. You feel you will be lost forever. Once you find your way you say to yourself, "Oh! I was almost there the whole time!" Don't fret if this takes a long time. You're traumatized right now. Healing won't happen fast (or fast enough!) but it WILL happen. It takes lots (so, so much) practice but I promise this gets way better!