<human>: Summarize the given text in a few sentences.

So, I'm currently a sophomore and last year my grades weren't great (two d's and a few c's). I really wasn't into school at all and I just slacked it off like an idiot. So, after that, my parents took away my phone for a week and I'm only able to use my labtop for programming or school (right in front of my mom's chair where she can watch TV and my screen at the same time). Anyways, when I started school I was so ready to do all the homework, and be organized, after I was so lazy last year. I felt so different then I did last year. Now I get home and my mother just has this weird constant anger to me over school and I do the little work that was assigned that day immediately. Afterwards she gets mad at me for not having very much work (obviously not believing that's all I had for the first day of school). She didn't care that I had been organized and did the assignment. So for the first week of school, I come home, do work, and I have no privileges afterwards. I read or some ****. My mom says this won't change until the end of this semester in which, if I have a 3.5, I will regain SOME of my privileges. It doesn't help that my sister has no privileges lost and she had worse grades. It's because she's a "creative learner" or some ****. That's really a stupid thing to get me mad but it really does get to me for some reason. If I bring up anything about it, she just goes off on this rant about last year (she's given the same rant quite a few times). I understand why she doesn't trust me but when I tell her I want to get A's for my self, not for her, and I feel utterly unmotivated when she babysits me. Anyways, point is, I have totally lost my motive to do good in school. Sorry for the terribly constructed question, I didn't have much time to write this during lunch.
<bot>: What do I tell my mom in order for her to let me make my own decisions, and manage my time the way I please ( not including the privileges I lost. Those aren't coming back :/ ).