OVER PARENTING!

Hopefully you guys will actually relate to this one.
Definition of Over Parenting: Being so worried about the safety and success of your children that you do too many things for them and prevent them from being independent.
My mother is definitely an over-parenter, she tries so hard to help, I can't seem to be myself. Not that I don't appreciate the help, because I do! trust me...I'm not one of those ungrateful children that always get everything they want, and always take advantage of the parents. I love my mother very much, she gave up a lot for me, and she doesn't mean to be an over-parenter, she just cares for the well-being of her older daughter, and I understand that, but it's just too much.
Okay readers, take this in.....

On Friday it was my best friends birthday, and she was having a dinner/ sleep over party at her house on Saturday. I asked my mother waaayyyyy ahead of time to avoid disappointment. Of course she said yes, because she knows and trust their family, and i was very excited. We went to the CN Tower, enjoyed a wonderful dinner, went on a ride inside the tower, and after all of that we went to Dairy Queen (who knew there was only one in Brampton...so sad). Then we went back to her house and watched funny youtube videos (watch Beyonce Clown...its hilarious). When we got home, I made sure to call my mother to tell her that I was at her house safe and sound, she told okay have fun. The next morning we slept in really late, then had a beautiful breakfast. We decided to watch movies, because there was nothing to do in the house. We watched Dance Flick & Fired Up....surprisingly the time flew by, and it was 4'oclock. I called my mom, but weirdly she didn't want to talk to me, so I was on the phone with my sister, she told me that mom was mad at me and i should come home soon, so i trust her judgement and told her I was going to take a shower then come home..and so I did. I was home around 4:36, why is it as soon as I came through the door my mom was like "why were you out for so long, storming in my house more than 24 hours later than when i dropped you off?" I shook it off, and said "what are you talking about?", she continued to say "I dropped you off at 2 the other day and your coming in my house minutes to 5, and you think that's acceptable?", I said "Yes", my mother said " How is it yes, explain to me", I told her "You have known this person for a good 5 years, she doesn't go to my school anymore we needed to catch up, and plus you know her family, I don't see what the big deal", she begins to say "Don't you know that next year September your going to University? you need to buckle down!", I was like "Mom, I don't have any homework", she's like "It's not the fact of having homework anymore, its about reviewing your work", i told her "that i already did, and that i don't have homework, and i did all my chores, so I didn't see the problem of staying at my best friends, who lives less than to minutes away (walking distance), 3 hours later than what you dropped me off". After all of that, all she told me " never ask me to go to no sleep over ever again, because your not going, and wash the dishes"---- LIKE SERIOUSLY!!!
What would you guys do?? Because I was so heated she was lucky that she was my mom. I went downstairs put on some music, so I can block everything out. She came downstairs and told me to make some dip for the Tostitos chips that she bought...I just looked at her and said "Okay mom" and went into my room.
Can you guys please tell me why does my mother acts up for no apparent reason...LIKE JEEEZZZ!! I am so tired off it.

Anyways I had to let that out, so hopefully I didn't bore you with my weird and unusual story, but it always happens to me...so WELCOME TO MY WORLD!