This happened when I was 20. I don't know what else to say other than, it fucking sucks.
Those who ignore it will be overweight, unfit, and on daily meds. Those who change their lifestyle will not.
The fix is:
> Leading a healthy life is simple: sleep well, exercise three times a week, have an active social life, eat a variety of vegetables and whole foods, avoid sugar, processed foods, alcohol and drugs. That's 90%. Everything else is optimisation.