:salam2:
All the obove is good advise, :ma: You know we also hear this eat less and move a lot sound simple haah,, naah. This need great work you need to set some goals and inshaAllah fullfill it.
I had to lose some weight too. after beeing a mom you the body has to great change we have to help to maintain its health weight.
Just eat when you are hungry and stop before you feel ful, (just eat to take the hunger down). eat less suger or not at all. You know as they say eat, drink and be Muslim. The prophet (sallahu alayhi wasalim) said, "The son of Adam fills no container with anything worse and more evil than his stomach (with food), Sufficient fo him are few morsels of food to keep him on his feet. Beyond this, let him divide his stomach into three parts: one third for his food, another for his drink, and a third for air, (leave it empty).
Eat like the Prophet (sallalahu alayhi wasalim), to eat with the tips of three fingers (index, middle, and thumb) to minimize untidiness and eat slower and in small mosels.
You need some support from a family member or a friend who can exercise with you. I would recommend walking I like it and it is easy. and If some reason you don't get that like me. remember that you are doing this for yourself first. Be good to yourself for the sake of Allah. Eat health and stay fit.
May Allah keep us all health in this life and next, Ameen.
I hope this helps InshaAllah.