Intuitive eating is a new phrase to me, but I guess is about retuning into the deeper messages our bodies give us, not just reacting to impulses/ urges that will pass. Mindful eating I suppose as others have said.
I think the key to making it through this retuning process, is what food you give yourself access to. If you only buy and make food that is very healthy and that you can eat plenty of, eg veggies, fish, lentil soups etc, then even if your interpretation of your impulses is off at first, you can't do much harm to yourself. We don't eat lots of bread or carbs (low GI but not obsessively so) and so have little sugar.
Buy the best quality food you can afford, value it and enjoy it.
Cook as much as you can from scratch; cook in bulk, freeze, keep jars of chilled soup etc. Reduce preservatives and ready meals etc.
I also buy very good organic chocolate which is rich, high cocoa and not sweet and tell myself I can have as much as I like, whenever I like - in fact a bar will last around 2 months. Sometimes I have a single section, sometimes a bit more, but I am intuitive about this and now do absolutely do trust myself.
If I do eat emotionally sometimes or over eat, I say OK, no one is perfect and I will try not to do it again, and this is what I will do to help myself.... then redouble my good shopping and meal planning efforts focussing on good food. I will keep an eye on the frequency of things going wrong so it stays within an achieveable margin - not expecting 100% but not allowing habits to deteriorate.
I don't always meal plan now, but focus on what ingredients I buy. I shop online taking my time, and don't shop on the spur of the moment or when I am hungry if at all possible. Hungry shopping is a disaster!
I like the perfect planning prevents piss poor performance!
This is my philosophy and it works most of the time, stress and lots of unpredictable situations in life don't help, but for me the key starts with good shopping and good ingredients.
I am sure you will find something that works for you :)