I think my mom saw my cuts while I was sleeping..

So my dad took me to get new shoes and I got 3 pairs, but they were all dark so that dirt wouldn't show up on them..
When she saw them she started yelling about how they are dark and how I'm emo and goth.
Then as I started walking back up the stairs she yelled at me,"Those will look GREAT with shorts!!!!"
I got scared because most of my cuts, and my deepest ones are on my legs..
I ran to my room and just started crying..
If she knew, she wouldn't feel bad and try to get me help. She would think I am insane and that I am some evil person and she would always be mean to me.. She has been mean to me and she has been acting weird since friday..
I'm scared, and I don't know what to do.