I'm addicted to snacks ☺️

So I realized I'm a huge snacker. I hate eating big meals. I rather eat real small portions but then thing is I'm eating all day long. I've been planning my meals out for the past 3 months with healthy food, but I randomly pick up chips cookies or candy into my mouth. I always pack a healthy snack with me but the bending machines at my job is like the devil telling me I need it. How do I stop randomly eating and cravings