Confession

I am a Christen ( help lead a youth group, and help with Sunday school), I have never dated or kissed a guy until a month ago when I invited a guy from a dating site to the house I was house sitting at and we went skinny dipping, kissed and I gave him a blow job ( we 69ed) and now he hardly ever even replies to my messages and I haven't seen him since. Soon youth group and Sunday school start again and I don't know how I can help with them without feeling like a fake ( I want my faith to be stronger but a small part of me wants to be with a guy sexually)