I'm sure you're over exaggerating, empathy is practically universal for our species save for sociopaths so the odds are in your favor. Also, I care as do others in this thread. Family sometimes just grows apart but that's the beauty of friends; they can be your new family and can sometimes even exceed your expectations of what family members should be.
It's so easy to fall into an endless pessimist rut because it feeds itself. You could try changing stuff up, meet new people, try something new like mountain biking, urban exploration and trying different types mood altering substances.
If you fear for your safety maybe you should buy something to defend yourself like mace, a tazer, knife, bullwhip, black jack, firearm (check your local laws) etc. Maybe a self defense class? I hope your start feeling better!