You know what? You can see how far you have come already on this journey by the fact that you KNOW that you ate badly, and you felt sick?
Hands up who ate like this ALL THE TIME, before, and never gave it a thought? And then wondered why the weight kept stacking on?
The key to success is FACING UP to what you do.. which is what you are doing Ally. Well done!
And - you have identified the things you can change for the future, namely, EAT BREAKFAST! And carry a snack along with you for "emergencies"!
Maybe also try - chewing gum in your bag (if you take out a piece and chew it, you can't eat because of the minty flavour in your mouth!), and if you are really craving Fanta, try Fanta Zero!
You can do it Ally. Jump straight back on that wagon, dust off your bruises, and cruise your way towards your goal weight more determined than ever!