I've never owned a cat before so I'm turning to all y'all cat professionals and lovers for some advice. I have a 2 year old female cat. In the beginning, she peed just fine in the litter box but after a long time later when I changed the litter box into a bigger box with a roof, shes been peeing on my bed, behind the TV, and now on the rug. This is a first time thing for me and I don't know what to do?? Please help??