I'm trying to decide whether or not to get blonde highlights in my hair.

I've never dyed my hair or done anything drastic like that to it (I know, I'm over dramatic. haha). But I'm starting high school and I've decided it's time to add in some variety to my life lol.There is a woman in my church who is amazing at hair, and she gave my friend highlights. They look so natural and gorgeous. So I'm trying to talk myself into having her do it for me. Is there anyone on here who has gotten blonde highlights? Got any pictures? Pros or cons? Thanks!
(I don't have any pictures where you can really see my hair right now because I'm sleeping over my aunt's house. But my hair is just like brown and straight. and really thick.)