drown (one's) troubles

To attempt to forget one's troubles through the consumption of something, typically alcohol (to which the phrase originally referred). It's not healthy to just drown your troubles every time a girl breaks up with you. Quit drinking and try to face reality. Whenever I have a hard week at work, I like to spend Friday night drowning my troubles in pizza and ice cream.

drown one's troubles

and drown one's sorrows

Fig. to try to forget one's problems by drinking a lot of alcohol. Bill is in the bar, drowning his troubles. Jane is at home, drowning her sorrows.