Anxious about driving !

Linda
Okay so I recently got my license I'm 19 and I was surprised with a car for Christmas. Yes I'm happy and excited but my mother said I don't look to excited and I told is because my biggest fear is getting into a car accident. I drive with my mother all the time and she tells me I drive well and she trust me enough with my own car. Idk I've had the car since Christmas and haven't really used it because I'm terrified. 
How do I get rid of this fear ? Did anyone have a similar issue before ? Is it normal ? 
Sorry I don't know where to post this question