@Samzen and
@glynis are both right. You have to try and live your life as normally as possible. Protect your ears around dangerous levels of sound, but don't give in on your enjoyment of life because of it.
There are many people on this earth who have severe tinnitus and yet live happy lives. You have to take a step back and stop making tinnitus the centre of your attention/life.
If you are making yourself depressed because of the life changes you have made, then you are no better off at all. The tinnitus is still there, but you are essentially making yourself depressed as well. Depression and tinnitus go hand in hand, but if you want the best shot at having a fulfilling life then you need to sort the depression out. The problem you're having is that changing your life is making you depressed, and yet you're doing this to avoid making tinnitus worse. It's a catch 22 situation - or better put - a negative feedback loop that is keeping your attention fixed on tinnitus, which in turn is keeping your mood low. You need to raise your mood to have any chance of feeling better about yourself. Get out there and start doing more of what YOU enjoy. Tinnitus won't have as much of a hold on you when you stop caring.
I know this from first hand experience. I've gone from extremely low, to happy, to anywhere inbetween. What I will note here is that my personal journey with tinnitus took a significant knock when I stopped playing with my band and started avoiding almost everything; in fear of being exposed to something loud. I can tell you that it was the worst thing I ever did. My mental state became worse when I started coming on tinnitus talk more frequently. I went from being happy to having that second voice in my head saying: "what if you cause more damage like the people on the forum keep talking about?" I am certainly not knocking this forum, it is a brilliant resource for all things tinnitus, but sometimes you can just read way too much.
I am now trying to get back to where I was mentally and emotionally last year, so my first step is to get back to living MY life. I felt way better playing than I do now. At the moment I feel like shit with a noise in my head. I'd rather feel great with a noise in my head to be honest.