I can relate. I sometimes consume quite a few calories before sleep in bed.

Maybe you could make it a point to schedule meals during the day. Hopefully, this will curb your appetite. Reward yourself for doing this. Get a habit app. I recommend Habit Hub.

Once you have made that a habit then don't lie in bed for any reason but sleep. When you get the urge to eat delay it by doing something you enjoy for ten minutes. If this feels uncomfortable for you embrace the discomfort. If you can embrace the discomfort than you can make a habit of this.