My mom and me just dont get along?

My mom and I have never really gotten along! We're just too much alike and we but heads 24/7. I can't say something without her starting a fight about it, and I'll admit sometimes I will pick a fight with her too. My boyfriend left to go out of town for two weeks saturday, so Saturday and Sunday I was a little grumpy, I know. Well my mom being the way that she is, woke up this morning, and was being really shitty. I asked her simply what time we were leaving in the morning to go camping and she screamed that we were leaving around 9:00, so then I asked very sincerely why she was so grumpy, and she proceeded to tell me that I had been a "little *****" for 3 days ( the third day was me telling her "No you can't have a pair of my pants") and that this was my payback! She make a chorelist when shes mad at us, and throws pointless things on there, juts because. I asked "mom are you really on a chorelist kick again?" and she said "yeah, you've been a ***** so now your'e going to work." Then I told her that I didn't want to go camping with her if she was going to act like that, and she said she didn't care, that I was going. She told me that I WAS going. I told her No I'm not!. and she took my cell ohone away. This upset me, because she knows how much I want to talk to him, and he can only call me in the morning and at night, and she knows how upset I am about him leaving anyways, In my opinion this was really wrong, and I think she's acting very immature about this. It makes me really angry and I've pretty much accepted the fact that we won't ever get along, untill we don't have to see eachother every day. But the problem is, she also won't let me pay for my own phone, she will be the first to tell you, that she likes having somethng to take away. What do you all think about this? Am I wrong to think she's a tad bit crazy? Do I need to just walk away from it? though I would probably get in trouble for that too. I'm 17 by the way. what should I do?