It can be tough to break from habitual behavior in the moment (i.e. when you're reaching for a snack). Instead try putting some effort on making it harder or more inconvenient to indulge in that habit, while also giving yourself alternatives so it doesn't feel too torturous and make you want to give up.

For example, I'm guessing it will be a lot less emotionally "painful" to resist buying those snacks when you're out grocery shopping than it will be to resist grabbing them when they are already in your pantry. Use that to your advantage and stop buying the worst ones and try replacing them with a few healthier alternatives so that when the urge to snack hits at least the worst options are not available to you.

I'm hardly the healthiest eater, but a good apple sliced up satisfies a lot of my urges to snack. Baby carrots with hummus also keep your mouth busy and fill you up with relatively few calories. Try a few fruit/veggie snacks to see if any scratch your itch to snack. You don't have to change 100%, if you can break the junk food habit even 1/4 of the time, that's a step.

Another thing that's worked for me is portion control. Instead of bringing the whole bag of chips with you, pour a bowl and leave the rest in the kitchen. You might go back for seconds sometimes, but it still creates a barrier to eating more.

I think the most important thing is don't try to make it all or nothing. That will just set you up for failure and frustration. Take steps that are meaningful but achievable. And when you have the motivation, try to think of ways to set yourself up for it to be easier to make good choices when you have less motivation. You got this 💪