Am I overweight?

I'm 15, 170cm tall and 60kg in weight.
I'm a size 14 in tops and pants, 14-16C bust (almost a D), I only eat dinner (I'm not allowed to eat breakfast or lunch) and I walk to and from school everyday, as well as a two-hour walk (mostly uphill) most weekends to get to my boyfriends house. I have really chubby arms, legs, belly, hips, bum, etc, and I just feel so fat compared to all the tiny skinny girls at school. My sister amd stepdad often tease me about my weight and appearance, and I feel so gross.
Anyway, from what I described, do I sound overweight?
Updates
+1 y
Im not allowed to eat breakfast and lunch because my stepdad doesn't allow it, he says I'm fat enough already.
Am I overweight?
Post Opinion