The reality mom, 35, laments that between taping that and Kate Plus 8, she forgot “what bored looks like.”

A new clip of Kate Plus 8 (the two-hour premiere airs Sunday on TLC; watch a sneak peek) shows Kate struggling to manage her kids without Jon on a family vacation to Discovery Cove in Orlando to celebrate the sextuplets’ sixth birthday.

“So much was new and different about this situation,” says Kate, who split from Jon last summer. (But while they were still wed, she took t