If anyone asks me, "How do I get started exercising?", I always tell them the same two things: First, go to the gym and strength train, as I did today.
Start out 2 days a week. Then go 3 days a week. Eventually you're going to get super excited about going to the gym.
So just start. Challenge yourself every time you go to the gym. I don't care if you're lifting 5 pounds or 50 pounds.
Challenge yourself to stress the muscles God has given you. That environment is SO GOOD for you. Just challenge yourself with weights.
The next thing? Walk (or run) as often as you can.
You can walk outside. You can walk on a treadmill. But get in your daily steps. Here are mine from today.
Just find time to move. You can eat more freely when you move more and have more muscle. So do some walking. Walking is medicine. So said Hypocrites 2,500 years ago.
That's it. Do these two things and eventually your weight and waist will start trending down.