I used to be pretty in shape and more than that, just plain healthy. Ate very very clean, exercised regularly, got lots of sleep, etc.
I got married and just slowly slid into a horribly unhealthy lifestyle. Gained a ton of weight, mental health got worse, work got harder.
I'm only like a week into eating super clean again and wow, I forgot just how much better you feel physically and mentally! And I know it's just the beginning. The scales have fallen from my eyes.