Hey girl, good to see you back again.
Well, what can I say to help motivate you? Lessee...
If you go back to eating McD's, you'll gain more weight. That's not something you want to do, is it???
Do you have a plan that you're following to help you lose weight? A program, a book, something like that? That can help you know what to do when you're out of ideas and inspiration. Even just writing down in advance what you plan to eat for the day can be helpful--you may not stick to it exactly, but at least you have a direction.
You are young and strong, and activity is good for you! Don't think of it as exercise, think of it as having fun instead. The 8 minute workout sounds good! Walking is a great activity also! Try to get back into that.
Your body will go in whatever direction you send it--either bigger or smaller--it's up to you! But it's much easier to lose excess fat and get your weight under control now than it will be later on, so take advantage of that!
Good luck!
Jay