Walaikum Aasalam!
As a startup, leave,
fast food, smoking, late night staying awake, masturbation, sleeping till late hours.
Start ,
A lot of green tea, black coffee once a day, cardiovascular exercises, chia seeds, grapefruit, lukewarm water+honey the first thing in morning, minimum 6 hours sleep, alot of green vegetables,
Other than that, start eating bran bread instead of white bread, skipping rope everyday, whole grain flour