What I do recommend is getting an education in health and fitness and don’t fall for the commercial products. They are motived to get your money, not motivated to help you.
Number one is to find peace. Shame, guilt, disgust, hatred and fear are not good motivators. You’d think they were, but if that were the case, no-one would do anything wrong would they? Practice some mindfulness exercises every day. Learn to observe your feelings and your body. Grow an awareness of your existence in the now. That’s a phrase you’ll only understand as you gain that awareness. Until then, you’ll roll your eyes and groan at the new-ageness of it. But if you are asking me how to get healthier, then you can either do it and reap the benefits or continue to think you know better and continue to be wrong.