Should i do this? help!!?

im a fit person and have problems like constant ear crackling when swallowing and headaches and i get sick most of the time . but i dont understand because im really fit from sports? i dont drink alcohol or smoke . but now i decided im gonna start to eat all healthy and drink water most of the time and im gonna start smoking weed for fun because im always depressed do you reckon changing to this way would benefeit me ? because im living a pointless and annoying life please help ? .