"I would know when I have gone too far. I know now that for a long time I'm good and it's just maintenance. As I get older I'll probably keep up with it. I definitely think that enough is enough. This is as far as I want to go for a long time. I don't want to look like Cat Lady." Cosmetically overhauled THE HILLS star Heidi Montag is on a surgery hiatus after undergoing 10 operations to enhance her body - over fears she'll end up like socialite JOCELYN WILDENSTEIN.