Wow it sounds like you are having such a difficult time right now, I'm sorry to hear of the death of your friend and family troubles at the moment.
You did so great to go six months without cutting, and slipping up doesn't have to be the end of everything. It just signals that there's a gap in your support tool box that we can work on together to be better prepared for next time.
There's a really good article about it here.. I know it's long but I really recommend you read it.
http://www.recoveryourlife.com/index.php?categoryid=66
Never give up on giving up self-harm, you get better at giving up every time you try.
And we are here if you want to talk xxx