Out of Control (Always Trouble Somewhere Series, Book 3) by Wanda E. Brunstetter

Ten-year-old Rachel is driving her Amish friends and family "buggy" with her lack of patience. Her attempts to control every situation bring her trouble at every turn-from sledding into a creek to scorching a yummy shoo-fly pie, to flunking a test in school, to being dragged facedown in the snow. Can Grandpa's wise words regarding patience get through to Rachel? Or will she spend the winter getting into more trouble than her Lancaster County family and schoolmates can handle? What will it take to teach Rachel that there are some things she just can't control?