I think I have a crush on my friend

I used to bffs with this girl, we were super close and told each other everything. But then I moved up into secondary school and we got our in separate classes. we didn't see much of each other for about a year cause I kept getting anxious about how long it had been.

but this year she's in a lot more of my classes and we've been seeing more of each other. but it feels different, I get super nervous about what I say around her and I'm afraid to talk in front of her friends ( she's always been super charismatic and popular, and I've always been really shy and anxious). she used to empower me to talk about myself. but I get really worried now that she'll find me weird.

I'm also finding myself staring at her a lot more, like I kinda what transfixed but if she looks over I quickly look away. I'm scared that she sees me staring and thinks it's weird. whenever she compliments me I get really happy(like a while ago I was talking with her and another friend and she said I was her favourite person, it gave me butterflies). I wanna see more of her, I wanna hug like we use to hug when is get sad. I miss her so much.

I've been having these super string feelings about her and I don't know what it is. I just kinda want some advice. cause I think I might have a crush on her