Thanks for all of advice everyone!
I had a great time last night. I did indulge a bit, but fortunately the fair made it a little easier, because some of the foods I usually go for had been discontinued (no more tempora veggies

).
I really supprised myself this year. I wasn't craving alot, and the only fried I had was a few bites of my sister's funnel cake. I had one sprite, which was because I had run out of water and there were no fountains around. (I guess I could have bought a bottled water...) Plus I didn't get fatigued when going up all the inclines and stairs.
Anyway, It was alot of fun and I didn't overeat! YEAH!