This isn't insomnia but its killing me all the same

I'm having trouble sleeping again. At first its cause I am not tired and than when I am tired its cause of the nightmares/dreams I'm having and if its not those than tits just the plan fact that I am too scared to spend much time unguarded within reality. I keep waking up and falling back asleep and waking up and falling back asleep. Today is our one day to sleep in but I can't find it in me to sleep in. The nightmares this time were torturous. I keep seeing myself in some sort of holding cell and I could hear T.K screaming and there was nothing I could do to go help her. The other one was more torturous because it just reminded me of my own loneliness. Well after about the 6th time of waking up I decided to just stay up and come online and write something. I miss my dog. If she was with me I could go outside with her and play fetch or just walk and calmly let out of my pores this stress that is eating away at my skin.