Yep, I go solo once a year so I can relate. I normally go during F&W so all my meals except breakfast come from the booths at Epcot, it took me 5 days to work my way around this year and get at least one thing at each booth. I also eat the kids meals for breakfast, I need the protein from the eggs in the morning and normally just eat one piece of bacon. Getting appetizers instead of an entre at the TS places is how I get around those huge portions. Looks like you have a handle on it and you'll do fine. After a while of eating a certain way you just know how to do it and your body will certainly tell you when it's full. I also get up really early every morning and take a nice brisk half hour walk around what ever resort I'm staying at. It's kind of nice when no one is around to just enjoy the beauty of the resorts.