Like others, I ate in the evening mostly out of BOREDOM, and sometimes emotion (which I am trying to overcome), so I came up with several other activities that I could do at that time. It does take practice and you will make the odd mistake; but be sure to learn from it, then move on ...
I took up crocheting for charity and that gives me two motivators -- keeping my hands busy and helping others. Making gifts for others is another good idea. I also check & water my gardens, come here to 3FC's, read a book, listen to music, and then put up my feet for a while and do my evening devotions et al, just before bed. On occasion, we may watch a video or go out for a while. Making a list of activities may be helpful for you; post it on your fridge with your list of healthy evening snacks.
Also, I have a "HEALTHY" snack planned and ready for the evening now -- every night. Usually it is cheese and/or fruit; or PB on a couple of ww crackers or baby carrots; or fruit and/or yogurt ... those type of things. I also have all-bran or raisin bran available if I am very, very hungry as that is very filling. For now, I have banned all foods that I have a tendency to binge on and that are just too high in calories.
You know that old thought that comes into your mind -- "might as well binge as you ruined the day now" is really your mind playing tricks on you. I call this "Evening Sabotage." That is your old bad habits trying to SABOTAGE you -- don't give in to that; don't let it win! You can rebuke those thoughts with positive comments like "Cancel, cancel -- I am in control and I am eating healthy now!"
My newest mantra is ...
"HEALTHY FOODS CREATE A HEALTHY BODY!"