Series about turning your entire life around

About the tough journey, I don't want to just focus on the goal. I want to take everything out of the experience of getting there. If the character is in their 20s or close, female or dealing with significant weight loss journey, those would be nice bonuses. But it can be about in general big changes to make your life healthy in physical, social or mental way. If there is also abuse of any kind in the past that lead the character to make wrong choices until now, that would be a nice touch.