I started because of my health so my journey might look different than yours. I will say, that making small changes and getting them in place helps. I was dx'd with diabetes. I stopped eating sugar, potatoes, pasta, and rice. Then a couple of months in I stopped eating wheat, then a month after that I started walking (to the end of my street
I got one change figured out before adding another. Now I'm walking 5 miles a day and my new change is some weight training.
Small steps done daily become habits. Habits become lifestyle. Lifestyle brings lasting change.