Ayaw magbreastfeed

Good day! Asking for advise. Mixed feeding kasi kami ng baby ko since birth nya (going 3months). But lately, ayaw na nya mag direct latch sakin like uunahin nya umiyak at matulog kesa magbreastfeed. Dahil sa let down i think. Ask sana pano mababawas milk supply para mabawasan yung let down. Lagi ko na lang pinupump ung milk ko kasi dumadami pa rin supply