I just need to vent—longish

I have so much anxiety because I’m a 13 year old bisexual that’s in the closet and it just stresses me someone in my family will find out and everyone will know without me being the one who tells them (coming out is the biggest thing on earth to me) anyways lately I’ve been feeling super down and I don’t know why. I have a pretty good life and I know it but I have demons in my head. I get so depressed and break down at least 3 times a week. I honestly just crave for a moment where I’m happy with no worries. I see so many classmates and friends so happy and I wonder why I’m not. Well that’s it. Sorry if you read all that and don’t think there was a purpose.