Naughty puppy!

So, someone told me I needed to post these in boston_buddies so here I am! This is my 6 month old boston, Kiwi. She's quite a handful! I wondered if any of your boston owners had any advice for me? Is it just that she's young, or is it her, because we are having a hard time keeping her off of surfaces and out of things she shouldn't be in. Just today, she jumps on the chair and knocks things off the desk. While I'm cleaning that up, she runs into the bedroom and knocks a whole water bottle onto the bed, soaking it! She's so curious, but I can't watch her every second! What should I do? She has a lot of toys to play with, but she is not interested usually unless someone plays with her. I think she could really do with a playmate but we can't afford another dog right now. We are crate training her so she is in the crate during the day, and I feel bad about putting her in it when we are home. Any advice? I've never owned a dog before (brother's allergic) so this is a new
experience for me.