Letters to a Purple Pony Princess

Dear Purple Pony Princess,

My sister can control the ice and snow, or shortened, winter, whilst I don't control anything. Around her, I kinda feel... less important than her, since she can control the cold season and I don't control anything!

When I discovered that she has ice powers, I was shocked at first, but now I became familiar with it. I'm trying to hide the fact that I think I'm almost not important at all, but I'm afraid that she knows that and soon will reveal it to everyone.

Whenever she asks about things like this, I lie saying things like "No, I think we're equal. We're sisters, right? No one can be higher than the other." with a fake smile, but on the inside I'm really scared. What if she does know what I feel? What if she waits for the perfect moment to reveal it and embarass me?

What can I do? Please help!

A Sad Sister