If you're interested in what worked for me
Calorie counting is a good step. I'm not skinny because I have an active lifestyle, I'm skinny because I force myself to listen to my body in how much I put into it and when I give it more it's because it's telling me it's doing something good with it.
Calorie counting helps you understand how much you're actually eating. After a week or two of it you can look up what your maintenance calories should be and create a general plan for how to get that much food in a day. The goal there is to learn what a healthy maintenance portion is and to get your body comfortable with it. Breaking a large meal into smaller plate sizes and only getting more after 10 minutes if you're still hungry is a great trick too.
Once you're no longer hungry all the time on maintenance you can start doing a cut (start with 500 deficit, don't exceed 1000). Have a goal weight and once you hit it maintain your controlled maintenance calories until it's instinctive.
Also, building muscle and more cardiovascular exercise are great additions to walking. Muscle burns more resting calories and is denser than fat, a good goal weight can look very different depending on how much muscle you carry.