Please help

I have no family to reach out to. No friends. I lost my job. Then, I find out the woman I have loved unconditionally has cheated on me 3 times throughout the 6 years we've been together. Im trying to find another job before I really lose everything and nobody is hiring. I feel like im at the end of my rope. Ive been having nightmares every single day. I tried to reach out to "family" and they told me to just get over myself. I never thought id ever have to reach out to the internet for help but Im just so lost. Im sorry