Eating an Elephant
Keep a bag, box or bin in your bedroom (in the closet or under the bed is ideal so it’s not out in plain view) and whenever you put something on that doesn’t fit well, has a defect, or you just don’t like anymore, do NOT put it back where it came from! Put it in your “donate” holder. I guarantee you’ll get rid of more clothes than you think you will AND you’ll eventually clear your closet of clothes you never wear.
(bonus: the feelings of guilt you feel every time you look at those
‘never worn clothes’ will go away once the clothes go away!)