Depressed

I feel so useless. I can't do anything right and the person who is supposed to be my best friend keeps telling me everything I do wrong even when I know its wrong. She acts like I don't know how to do anything. I know it might seem silly but it still hurts and its just bringing me down. I can't tell her because then she'll get all upset and start yelling that "its always her and nobody else" I can't deal with the fight right now so I suffer in silence. I don't know what to do and its making me feel depressed. All I want to do is cry. I wish she would just stop.