What more can I do?

Do you ever get the feeling that somebody just hates you, and you're not sure what you did to inspire such bad feelings?

Melancholy, Constance Marie Charpentier (1801)

I was told something that somebody said about me today, and it was so hateful that it knocked the wind right out of me. I felt like all of the strength I had left me, and I had to sit down just to be able to continue to function.

What can I have done to make someone think so badly of me? What can I do to change? I often feel as though I am not a very good person, and this just feels like proof of that. I do not do enough to be helpful. I am not happy enough. I am constantly making mistakes. But I am trying so, so hard to overcome these things. I just want to make everyone happy.

How am I supposed to fix things? I don't know what to do.