Nervous about driving on the highway to go pick up my girl...

She lives about an hour away and I have to drive on the bypass to get to her, I'm a new driver this will be the first time I will be on the bypass. She left this morning and her car was giving her trouble earlier and she doesn't want to drive it so I was like why not I'll come get you. I leave at 9 but I'm super nervous about driving on the bypass as a new driver. I'll probably drive her back in the morning too. My mom's not helping either she's like I'm nervous about you driving on the bypass and I'm just like losing my shit with anxiety.