Dear John,
As your friend,iam glad to help and give my suggestions about it if you need.Firstly,please don't regard it as a difficult work,but a wonderful chance of pratising yourself.Secondly,communicate with the classmates with your eyes when you speak in front of them,which shows your confidence and respect for others.I believe you can do it,please never feel nevrous,just do your best.i look forward to hearing from you.
Yours,
Daming