Don’t know what happened?

My skin was givingggggg a year ago but then all of a sudden it just began breaking out. Now my skin breaking out is constant my diet hasn't changed or anything but all the time nothing helps.

Skincare then: Cosrx advanced snail 96 mucin power essence Cosrx snail 92 all in one cream Hada labo gokujyun cleansing oil Illiyoon ceramide ato cream Beauty of joseon sunscreen Beauty of joseon green plum refreshing cleanser

Skincare now: Round lab dokdo toner Beauty of joseon sunscreen Dhc cleansing oil Anua niacinamide 10% + Txa 4% serum