Hi Emily. We can all feel you. I myself experienced my concussion in January of 2016. I am much better now - the last frontier for me being loud sounds/music. That is getting better slowly.
Things that helped me:
- physical therapy from a concussion specialist who helped with my neck and eyes/reading issues - this was a huge help
- in the beginning, meditation helped somewhat
- I have sleep apnea and using the sleep apnea machine provided needed oxygen to brain at night and that helped.
- I recently went on a high fat diet (eat fat, get thin book) which involved saturated fats. I noticed an improvement. Now my excuse for eating cheese!

The neurologist was not much help. Just wanted to give me drugs which I didn't want. Theory being that the anti-depressants restart your brain after six months. Some people say that helps.

The only help that I know of for sound is time. And good earplugs.

Also take a lot of B12 and magnesium. Can't really say if they are helping but I'm doing it. There is a lot of information on this site regarding natural remedies.

One thing all the docs say - as you probably know - is that everyone improves at their own pace. Best to learn how to cope and adopt a positive mental attitude. For example, when I couldn't read or watch tv, I started listening to audio books and that was really a pleasant experience.