Anxiety Support Group
Anxiety is a physical condition marked by intense and persistent feelings of distress, fear, angst or dread. General anxiety caused by routine day-to-day stresses usually passes quickly and is experienced by almost everyone at one time or another. However, such feelings that linger over time and are very difficult to cope with, and which lack a clear cause, may indicate...

Have a smile on your face always. Be nice to the other kids always. Be kind to them. They will respond to the kindness. I think kindness is probably the best social oil there is. It's also an easy way to cope with feeling insecure.
That's my 10c worth anyway. :) I feel your pain.