For parents with teenagers that drive, can you share some tips with me to help me relax while my daughter drives?

My daughter is 15 and now has her learner’s permit. I am very happy for her, but at the same time, she scares me. I know it’s not very helpful if I am a nervous wreck, while sitting next to her and I am really trying to let go of the anxiety; however, I’m not always successful. How did you make it through this time and help your teen learn to drive?