Sometimes tinnitus seems loud and sometimes quiet. Be comforted that you won't always have it as loud as it seems. You can retrain your brain to not notice the sound so much, like the way you don't notice the sound of your fridge- until you switch it off! the key is relaxing and not worrying about it. If you get stressed with the sound you are actually inviting your brain to pay more attention to it, when you want the opposite to happen.
I find leaving on a TV low at night helps distract my brain to listen to the tv not the sounds in my head. Radio 4 would work too. You can get special boxes that emit soothing sounds, such as the sea etc that counteract the sounds.
It could also be that you have a slight ear infection which is causing this, and so it will not be permanent. You could also try altering your diet- do a 4 week detox and see if that helps the symptoms. If you have a stressful job you may want to look at changing that too. I find mine gets so much louder when I am stressed. x