Even though I am only 18 myself I still get anxious about school children laughing at me. I have been able to overcome this by adapting myself to the situation.
When I was housebound I built up from this list of things and after a few weeks O was able to walk out my front door to go into Central London and feel excited and not nervous but I understand it takes people different time to combat things.
This is what I did:
Just step out the front door during a quiet time of day
Walk to the the end of the road and then back home again
Walk to the shop when children are in school an buy your favourite magazine as a reward
Walk to the train station during the day and take the tube one stop and then walk home from that stop
I hope that helps you
