<human>: Can you provide a brief rundown of the text in within 3 sentences?

This is the accident. 

When we heard it we ran outside and saw his mangeled car and his body just laying on the ground. After checking to see if he was breathing, my friend and I made sure no one else was in the car. Luckily, no one was. Four of us sat with him, talking to him as we waited for the ambulance to arrive. He was lying face down, but I could tell his ribs were destroyed, and his face was totally fucked too, his attempts at breathing through the blood that was drowning him are echoing in my head. He tried to lift his face, but worried that his neck was hurt in ways I couldn't tell and that moving his head could possibly hurt him more, I patted his hair and told him everything was going to be okay, we stayed with him until the paramedics arrived. 

We were waiting outside, worried because the ambulance hadn't left yet, and then when we saw the coroner on sight I just lost it. 

I didn't know him, but I can't seem to get over it, I need some help. I'm working on contacting my campuses psychologist, but I know that just talking about it won't get his mangeled body and choking breaths out of my head. 

Please, if you experienced a traumatic event, what helped you get through it. I'm terrified to sleep, having trouble keeping food down, and on the verge of tears at every moment.
<bot>: I witnessed an awful car accident, stayed with the victim until the paramedics arrived, but he ended up dying. I'm having issues dealing with it.