Sorry to hear about your troubles. These problems are common and we all face them daily more or less after our accidents. I am myself 14 months into it and have all the symptoms that you mentioned .

its disheartening to realise that even one year is less for such type of injuries to see the real improvements. But life goes on. Hopefully we will see improvements as the time passes. Just give time some more time and keep positive, easy to say I know. Been there done that.

Meanwhile get your neck checked by a chiropractor. It can be the cause of some of your symptoms. Also try yoga and breathing exercises. I am sure you must already be taking vitamins . Get some help with the night's sleep so that you wake up feeling refreshed . I take ashwagandha herb and it helps a lot with sleep issues. There are some other herbs as well for sleep and anxiety. Good luck