Is it weird not to have a best friend in HS?

From experience... you don't stay super close with anyone after high school. You will still talk to friends and all but as you go on in life, you will find more friends and even that one best friend you're hoping for. I still talk to friends from high school and still hang out with them but I only have one best friend. I was lucky and found her in high school and she went to the same college as me. But I have a friend who made his best friend in college too. Sometimes you have more than one best friend. And it's okay to not have to rely so much on one person because as you grow as friends, you will still be there for each other but you will also be really focussed on your own life. Just keep having fun with the friends you have and things will fall into place eventually. I'm sure you can count on a lot more people than you think. You may just feel like you can't for whatever reason.