Don't let it get you down bud, leaves are the worst and 10x when wet could of been sand or gravel, or a number of things, be easy practice, look around constantly for hazards like everyone is out to get you but don't be scared. If you are unsure practice in an empty parking lot until you feel confidant I know the love you feel for riding as I ride every day only drive a car if its below 30 degrees and the changing of summer to fall is awesome time to ride. Sometimes ill even ride in 20 degree weather to work and back and I only wear a half helmet so. Very good point ride with some experienced riders!!!
Ride Safe Be Safe!