Struggling with Emotions and Insomnia After Husband's Motorcycle Accident

I have been struggling with everything lately. I really need some things that could help with processing my emotions and calm my anxiety so I can sleep at night. My husband was in a motorcycle accident on April 1st. He became dependent, so I left my job and moved across the country back to his home town to get help from his family. He has been recovering well, and he is much less dependent on me. I have been struggling with separation anxiety as this accident happened while I was at work. I'm struggling with insomnia as I lay in bed some nights and have flash back to the accident scene I arrived to, including all the emotion and how everything unfolded the first day. I start a new job soon, but I am still struggling with emotions. We are financially strained due to the accident, so therapy isn't an option at this time.