Struggling

I'm so struggling with this 'eating/lifestyle' change thing. As I said, I made better choices on my vacation...but still ate too much and some choices that were not the best. I came home and I am 100% determined to stay with this and do it. It was working so well for me before the vacation. AND I had a friend give me some clothes while I was on vacation (she is also losing weight and has outgrown the clothes...so she passed them on to me). Some of the clothes are too small, there are a few that are just a little tight and then I have some that are just right. I was wearing some and I noticed last night that they are actualy a size LARGE! There was no x in front of that word. Let alone 2X. I was pretty tickled. SO I know what I've done is working. However, my willpower after vacation just seems to have vanished! I forced myself to get up and exercise first thing in the morning. I'm hoping that if I have in the back of my mind that I already exercised, that it will help me 'remember' that I should turn some of the bad stuff down! I know I can do it. I want it. I just need to get my head back into sync with my heart!