From Longman Dictionary of Contemporary Englishsubmerge yourself in somethingsubmerge yourself in somethingBUSY/HAVE A LOT TO DOto make yourself very busy doing something, especially in order to forget about something else Alice submerged herself in work to try and forget about Tom. → submerge
Examples from the Corpus
submerge yourself in something• She looked into his dark eyes and submerged herself in the bliss of being flattered.• With resigned disgust, Alice lay back, submerging herself in the only softness available at that time-the pillow.• He preferred, he said, to submerge himself in the urban swill, or be in deep country.• Often, departing high-level administration types go teach dry government courses or submerge themselves in think tanks.• Alice submerged herself in work to try and forget about Tom. 