Unhealthy

I've worked here for a year and 7 months. I have my own route and it requires a lot a lot of driving. I can't stop eating Frito-Lay products and I don't know what I can bring with me to eat that won't get boring. Maybe I just need to do better I feel like I'm getting really unhealthy though. Has anybody who loves junk food found a way to resist the temptation?