Hi Heather,
Sending you big hugs - I too had a horrible dream last night and it sucks. It was so vivid and frightening, and it is a recurring dream I have when I am not in a good state of mind.
Just try and hang in there. With regards to the cutting please seek help for this if you can - it is one of the things I have done to try and release or distract from my negative emotions but it can also have horrible consequences. Try if you can, to get rid of your negative emotions in a more constructive manner - scream, punch a punching bag, run, write all your emotions down, talk to a trusted friend or whatever helps.
I know where you are coming from cause I have self-destructive tendencies myself and it is so easy for me to hurt myself because I am so used to others hurting me so I go into that 'self-destructive mode', which is my default which takes a lot of 'un-doing' but just wanted to let you know that you are not alone.
Hope you get some good rest tonight,
Hugs,
h2o