Advice?

I am with this girl now... Johnna and she makes me soo happy when we hang out.. We made plans to hang out every day when school starts and I am soo excited I really really can't wait! Its just that I am scared I am going to cling on to her to tight and she is going to push away.

I am soo scared idk what to do.. I feel like if I am falling for her soo hard and she said she is falling for me too though. I just know it will be better when school starts up again so I can see her more. I love holding her and snuggling her for no reason. And yesterday we kissed! we kissed and I was just so happy I felt like the world was in my hands.
She makes me laugh and I am kinda protective of her..I want her to be safe and happy..
and in return she makes sure its the same for me.
I love it that she is so close to me I can almost be with her everyday but I don't want to cling on..
Any Advice?