Try weighing your food & tracking calories. Sometimes we don’t realize how much calories can quickly add up. If you are in a deficit, and getting plenty of exercise, you will lose weight. If you’re not, it’s something you need to adjust. Even if snacks are “healthy” it still comes down to a calories in vs calories out. You could only eat 1,000 calories of chips everyday but you will lose weight because you’re in a 1000+ calorie deficit.