I'm starting Honors Geometry in the fall,any tips?

[Rock my socks!]

I've always done really well in math but since I'm going to be a freshman next year and this is a tenth grade course, I'm a bit anxious. What are some books,websites or just general ideas that I should study over the summer so can get an idea of things I will be learning next year?
Please share your personal experiences with Geometry!
Thank you so much everyone! Have a good day!