The Burden of (a) Perfection(ist)?

I'm an A student. And my whole family and me are great at math. But I just got my geometry grade for the half quarter and it is bad. I nervously told my dad and he yelled at me and grounded me. I'm great at algebra so why do I struggle with geometry? What do I do? My dad never realizes all the progress I make nd all the things I'm good at. He only sees the bad and how I can improve. I'm really upset not only because my dad is mad, but because I'm disappointed in my grade. I feel like my academics are falling apart. In the second quarter my lack of attendance (I don't do mornings well and my anxiety gives me anxiety sickness) caused my gym cl to be a 65 (even though I'm the only girl who tries and I wasn't absent THAT much). I don't even know what my question is. I just want help.