I'm trying to raise chickens and I'm having trouble keeping them alive, first it was the wildlife and now they are eating each other,help

The only way to keep them safe is to keep them fenced securely.

As far as them eating each other - do you mean killing each other? How many hens, how many roosters, how much space?

I am no chicken expert, but this may be a hehttp://msucares.com/poultry/management/poultry_pecking.htmllpful link.
May be a little help.
Good Luck