Losing hair like crazy

Kris🐶🐶👶🏼
Im 5 months pp and i am losing hunks of hair. I dread washing it (i only do once a week) bc i know that ill pull out atleast 6 large handfuls of hair. Idk how im not bald yet. Does anyone have any suggestions on what to do? Im so embarrased and im really worried that i am goingto go bald.