There are definitely caring people in this world. Don't give up yet.
Personally, for me, I think that sometimes in trying to protect myself, I may be suspicious of others. Or just not notice that someone is trying to encourage me. Or trying so hard to "escape" life that I may not notice a helpful person.
I have recently come to realize that not only have I had many bad days in my life, but they are to be expected from time to time.
Courage, friend. We care.