I need a change of hair colour and style.?

Im coming up to year 9 in my school and i really want a change of colour and style to my hair. I have always wanted to go blonde, but i have thick dark eyebrows. My mum also doesnt like me dyeing my hair, she still wants me to be 5 years old! I recently had my hair cut into a bob, and i hate it, im hopefuly buying some real extentions soon, so please could someone help me on what colour and style to go for, many thanks, jess x