Universe conspires against my dietary plans!

So, I've been trying to eat healthy so i can lose a few pounds. Nothing crazy, just eating healthy during the week so i can spoil myself over the weekend. I just love food!

These past couple of days it feels like the universe is just testing my commitment! This Thursday, two coworkers had birthdays together and they brought snacks to the office for lunch (duritos with beans and coleslaw), which i cave and eat some. Then later the rest of the plant pitched in for cake (delicious chocolate cake!), which obviously i wasn't letting pass. Got home, and my wife and I decided that since I already lost my day of eating our planned meals, we should just go ahead and have dinner out, so we went for sushi (including fried rice and a crab spring roll, delicious!!). Next day, I didn't bring my lunch to the office, so i went out for lunch with other coworkers, and we had some gorditas (I'm in Mexico, so this is a very normal option, and guess what? They were delicious!!)...

I got home and my wife and I are joking about getting a pizza, and since the truth is told in jokes, we end up ordering one... who cares! It's Friday afternoon so technically it is already weekend! Delivery guy drops by and give us our order (half Hawaiian, half chicken and veggies). The guy takes off and we get ready to watch twin peaks while eating pizza, turns out the pizza is pepperoni only! We call the store and they say we can keep the pizza, and they are sending us our original order in a few minutes. What are you gonna do, not eat a pizza you have right in front of you!? What kind of a psycho would I be!? We were starving , so we grab a slice each, two minutes later our correct pizza arrives... yup, you guessed it. It was delicious!!!

Sooooo, long story short, I have no willpower! Let's try again next Monday... anybody else had a similar experience?