Girlfriend advice

Hi I’m Elke belle 13 and I really like this girl she’s sooo cute I’ve kissed her a few times but it was spin the bottle she knows I’m Demi and let’s me flirt and she flirts back she laughs at my dumb jokes which no one laughs at and I like put my arms around her and things I wanna tell her I like her bc there’s a dance coming up but I dontknow how (btw I go to a Christian school) 😭😫