She Really Pissed Me Off Tonight

I dunno what else shud i do..

She wee2 on my mattress tonight..

Last 2 days she wee2 on the sofa..

Arghhh..

We already trained her to wee2 and poo2 outside..

sometimes she do it sometimes she dun..

sometimes she even wee2 n poo2 all over the house..

If u guys whoever read this hav a shih tzu at home..

pls tell me how to train her..