Dancer Pose brings a nice challenge for your balance. It is a back bending posture that stretches the whole front side of your body. Gently work toward getting your lifted foot and upper back closer to each other.
Keep length in your spine, especially in your lower back. Avoid letting the vertebras compress with each other.
Try practicing Dancer Pose with a belt. In this variation, practice gradually sliding your hand down the belt and toward your foot.
The steps are the same as described above, other than the preparation for the belt. Wrap the belt around your foot and flex the toes or foot to keep the belt from sliding out. Then put the belt around your shoulder and behind your back, with your elbow pointing up.
You can also try this asana holding the belt with both hands, both elbows pointing up. Gradually slide your hands down toward your foot.