Crash after 5-6 hours

Im sure this question or something related has been posted here countless times, but does anyone have advice on how to deal with the crash? I take my 40mg at 9 a.m. everyday and around 2-2:30 I crash HARD. Groggy, angry, depressed, looking for anything to numb the symptoms. This lasts for about 2 hours and then I mostly even out the rest of the evening.

Any advice? Eating more or certain types of food? Been on it for 1.5 months; does this crash go away eventually?