I'm still as shy as ever

I am shy and only tend to dance when I'm tipsy or drunk. I haven't drank any alcohol in about two years. I have friends that are shy and they have no problem dancing, I can't think of one family member that wouldn't or doesn't dance. My boyfriend can't dance and doesn't care. I feel like a brick wall, I freeze up and act childish. Before I started high school I used to dance like nobody was watching and then everything changed. I just feel so boring and uncomfortable everywhere I go and music plays. I want to join in and I freeze. Anyone else??