blow job?

Alright. So, I'm 16 and have been dating my SO for almost 7 months. I'm in love with this boy, and wanted to do something special for his birthday. I've been holding off on giving him a blowjob, because I've been scared. I don't think I'll ever get over being scared, but I want to do it for him. Do you think 16 is too young? My parents are very strict, but I'd keep it a secret. Also, any tips if I do decide to do it??