What to do about driving anxiety?

I got my license about two weeks ago. After accidentally scraping a car while pulling into a parking spot, I have had really bad anxiety while driving. Every time I screw up or accidentally cut someone off, I feel awful about it for days and I don't want to get back on the road. I nearly cause an accident today while turning left out of a parking lot today and I'm not sure I can do this anymore. I'm so tired of being constantly afraid of hitting someone or being hit. And after today, I really don't feel like a safe driver. Is there anything I can do to help this anxiety? What should I do about driving? I'm 18 and I don't want to be bumming rides off others forever, but I don't feel safe when I drive.