Potty training tips???

niaa • 22 🙌🏾 Mommy of 2 👩‍👧‍👦 Committed to myself 💍 Self love is the best Love!

I have 3 year old that’s already potty trained. But my two year old has a serious problem pooping on herself & playing in it! Like on my walls, the floor & herself. & I just can not. Also she has no problem telling ppl she has to use the potty outside of the house. But lately at home she never does, then she changes her own pull up. 😒 help me please.