What am I doing wrong?

I'm clueless. I mean, seriously....I'm clueless. I just don't get it. What in the world am I doing so wrong? I'm nice to people. I help anyone who needs help (if I know about it). I compliment people. Love people. I listen. I give advice when asked, and I feel capable to give the advice. If I don't, I find someone who is. If someone needs money, I give. I give. I give. I give. I give. I give. But, let me need something. Or want something. And BAM....people run the other way. Let me ask a simple question,  ( Have I offended you again?) and I am insulted and called annoying. One time I actually had someone say I was "fat and ugly." I forgive. I always do. And forget, although much more difficult than forgiving. Seems like the very ones who I give the most too are the ones who literally stomp the shit outta me. So do I quit being nice? Quit giving money? Quit helping? I'm told no. You keep loving, helping, giving, listening, etc regardless of what is appreciated or not, whether I get anything in return, whether anyone ever returns the favor. I'm planting seeds I'm told. But at 51 and my whole freaking life has been like this, I'm about to lose it. This past week, I had two people I care about de-friend me on FB. Yea, it hurt. I guess I am not suppose to question statements. I am suppose to just eat shit and be quiet. Dont ask questions. Just take the shit that is shoved in my face, swallow it, and smile like I like it. I blocked both of them. One, I still have to deal with. The other....not no, but hell no. I'm almost to the point that I want to push everyone clean outta my life. I'm tired of being insulted, hurt, humiliated, jilted.....what is it that God wants. Am I not doing something? I don't know, but I am tired of thinking. Glad I am going back to work tomorrow. ....take my mind off of the shit.