Hi from Atlanta! Welcome! There's lots of great support and advice on 3FC, so look around and see where you think you might want to read and post.
Besides exercise (which is great!) have you thought about what kind of food plan you might want to follow? I'm a dedicated calorie counter - the first and only thing in my life that's enabled me to lose weight and keep it off - but there are many different forums here for different plans.
You can do this!