how to be happy again with life...

my life isn’t going good at all. I lost my best friend boyfriend , I still live with parents ,i don’t have kids yet, Not in a good place with my career , just everything sucks right now, im in a dark place right now and can’t find the light , i feel like nobody loves me or cares for me at all, Not even my own family / parents.. I’m alone , The stress is eating me alive , This morning i woke up and felt like i didn’t want to breathe any’more .. i just don’t know what to do anymore. im lost and depressed