Switzie,
If you find yourself buying that take out food, here's a trick, take half or 3/4of it off your plate or tear half of it off and put it in the trash before you take one bite. If you can't stand to trash it, then bag it up and put it in the trunk of the car or where you can't smell it, then put it in the freezer when you get home. Go ahead and enjoy the rest of it, then go home and eat your planned dinner or a healthy snack and drink some water. It helps me to think of the calorie and sodium content in take out food, because there's hardly anything you can get that's less than 500 calories and about a 1000+ mg of sodium. That's going to bloat you up like, well, something bloaty

, and you don't want that water weight showing up on the scale!
Another trick is to make a date with yourself, say your next day off, or your next payday weekend, you'll take yourself out for your fave dinner and maybe a show, maybe invite a friend, and live it up, but you can ONLY keep that date if you stay on plan the week before, and the morning of, eat lighter so you still make your calories, even with that dinner.
You may find that a protein snack before or after your workout will help avoid that feeling of hunger and keep you going until you get home. Sometimes, I'll eat a piece of bread, along with some lunchmeat or a little PB, to tide me over. The bread gives me that quick boost and makes the hunger go away, then the protein gives me the slow burn that keeps me going a few more hours, without blowing my calories for the day.
If you don't like those ideas, then how did you start off, at the very beginning? Look back and find a place in your personal plan where you feel you can "jump in" and start from there. It might be a step back from where you were before vacation, but it's a step in the right direction. You can do it, Switzie, just take it one step at a time, and you'll catch back up to where you were!
Cheryl