Any tips for my first solo road trip?? ๐Ÿ˜Š๐Ÿš—

I'm taking my first solo road trip tomorrow!! I'm going to a place that's 3 hours away. My parents are normally super overprotective but they're finally letting me do this even though my moms a nervous wreck (I'm 19 though, so it's time haha!). Any tips on how to make sure it goes smoothly?? I'm a little nervous but I'm sure it'll be fine!