I will tell you a couple of things.

1. I was there once. I found myself in a hospital thinking I was having a stroke but it was just an anxiety attack. I speak from experience.
2. I am don't mean to be churchy and I don't really preach but it helped me to really look at my faith and lean on it and the people around me that had some.
3. hold those that are close, closer and make new friends along the way, put yourself out there.
4. If it is worth doing it will take some work. Failure is not the opposite of success it is an ingredient. Learn from it and move on.
5. we are all afraid to die but inevitably it gets us all someday. But I found that living in fear of it everyday was as bad as dying in the first place. We only have one life to live on this hunk of dirt so it is worth it to get out and enjoy it. You might be surprised what you are capable of.
6. Don't loath in self pity, it is like peeing your pants in a snowstorm, it feels good at first but after a time it is terribly uncomfortable and just gets in the way of moving forward.

Good Luck!!