Teach the "leave it" command. It will be in valuable to you. Start off with treats-when Zoe goes for the treat, startle her and say "leave it". Don't allow her to eat until she actually leaves it for a second. After a couple of times of doing this, call it quits. The next day you do it again, but wait a few minutes until you let her eat it. Then work up to objects. Toss a ball a short distance and tell her to leave it. She might not distinguish the ball as a leave it command, so be patient. You will eventually be able to tell her to "leave it" when she jumps on the couch. Be very very consistant until she is much older, never allow her on the couch, even just to cuddle. When she's older and able to understand more, you may be able to teach her that it's okay to get up on the couch, but only when you say. (If that made sense.) But for now, don't let her up there at all.

Until she learns leave it, gently push her off the couch. She should get frustrated after a couple trys and go off to find other things to do. Give her a treat when she's calm and not trying to get on the couch. Hope this helps!