I used a relaxer when I was maybe 12 or 13 that was geared to African Americans (I'm super white). My hair didn't fall out but neither was it straight. I wish I had pictures but I don't. It just looked frizzy and poufy. I think I tried it a few times under the delusion it would suddenly work and my hair would be stick straight and glossy but surprise! it never did.

I think your hair is beautiful as it is. It doesn't look weird because it's less curly at the top. We all think about our hair way way way way more than anyone else thinks about our hair.
*3B, medium/fine, normal porosity, normal elasticity, shoulder-length when dry.