I've been struggling a lot in quant and scoring 60 percentile in mocks. I wish to join MICA and their CAT cut off is around 85%. I'm losing confidence. Is there a strategy I can follow to solidify atleast an 85%tile

Cover Arithmetic topics first, then Geometry, then Algebra, go through all classroom videos of these topics & practice. rest all topics u can master later. so that u get a gut to attempt 70% of questions, which should fetch ur required %ile, later keep focusing on improving your accuracy, which may even take u to 95-99+ %iles

focus on arithmatic and geometry u can score well