I, too, am a third year official who has attended a number of camps and worked with local veterans. The guidance I have gotten is, "you will know when you are ready". For me, it is now. I worked some development leagues this summer and gained the confidence I needed to 'take on' some "small-scale" (approx 200-300 fans) Varsity games.
I realize that this will cause some personal "angst", but, as I have found in the past, all growth experiences do.
Best wishes in your upcoming season, whatever you choose to do.
