engagement dropped and i’m not sure what changed

i’ve been posting consistently on instagram but my reach and engagement have taken a big hit over the last couple of months even though i’m putting out similar content as before. i mostly focus on reels now because they used to perform well but lately they’re barely getting any views.

i took a course on 4reels pro to improve my editing and hooks but i’m still not seeing the results i expected. has anyone else dealt with a sudden drop in reach and what actually helped you turn it around? any specific changes to posting times, content style or reel length that made a difference for you?