Mag Chalkboard Paint: Paint a wall, have some craft activities to have her make castle/house/outdoors/etc pieces (modular ideas so she can build the castle in many different configurations). Also could use chalk to outline and draw.
This small group counseling resource contains self esteem games, self esteem activities, task cards, and worksheets to help children ages 9 to 14 learn how to value their worth and gain more self-confidence. When children know that they are of value and are important, they perform well in school and are more likely to find success later in life.
Repeat as often as possible. We feel really lucky to work with such encouraging writers at Hallmark! They keep our self-esteem high with inspirational quotes like this. Customize your card for somebody who needs a boost at Hallmark.com.