Are you asking yourself if it is possible to walk your self in to shape?
YES it is! Walking is of course a very gentle form of exercise where the risk of injury is very low, therefore, you need not be afraid to go too much. It depends on how much time you have? Going morning walks every day before breakfast works just fine, but also walks on the afternoon are effective if your goal is to lose weight.
Diet for walking yourself in to shape
Regarding the diet, I recommend to eat as clean and natural food as possible and not exclude any food group, but since you are looking for weight loss, I recommend avoiding sugar and most starchy carbohydrates in the form of, for example, pasta, bread, rice and potatoes. Select the preferred carbohydrates in the form of fruits, vegetables, roots and berries. Combine with good unsaturated fats and good saturated fat which, for example, coconut and fill your plate with organic lean protein. So eat until you are moderately satisfied and never go starving!