She is calmer but jumping on all the furniture in the family room. She is part monkey I think.

I thought this family room was puppy proof but it seems that she can find someway to scare us,,she will even climb onto the end tables. I am teaching her off but she is not liking that very much.
She is 20 weeks old today and I was wondering do you have a hard time keeping your babies off the tables? I am so scared that she will get hurt and I hate her jumping.
She has to have her free time and I am with her when she is not in her playpen but still worry that she will get hurt. Is there anything more that I can do? Should I have got an xpen? Not sure that would help now.