I am so sorry that you keep having to deal with that. It feels terrible. It is possible, though, that she thinks she's helping you. She might be really unable to (as in too insensitive) to understand how her 'help' comes off as criticism. I think I've been guilty of that with my kids at times, and my youngest daughter seems to have taken it 'in' like that.

I think you should 'call' her on it. Next time she says something like that, look her straight in the eyeballs, and with a smile, say: "I am sorry I am such a disappointment to you!" Maybe it'll hit her with a brick in the head - startle her to realize how she comes off.

By the way, I saw your latest video, and I always think the same thing. You are so beautiful, and I particularly noticed how white your teeth are! Isn't that ironic?