I dunno if here is the right place to turn to help. but I really have sth to solve. My mom installed a parental control software(not the built-in one) in our mac, now I have zero privacy and privilege!!! I cant open facebook, play games... It's the house machine and I use the guest account. Is there any way to disable it without reinstallation or software?
Wow,
I really hate to be such a stick in the mud, but helping children to overcome the efforts of their parents to protect them is not something I am prepared to help you with.
Please try and realize parents have tons of responsibility and they are not just doing this because they have nothing better to do and are bored.
When I was young I used to think my parents were being unfair too, but as I got older there were many times, and still are, when I had to stop and say, "Wow, I guess Mom and Dad were right. Holy crap, did that just come out of me!", and as you get older and have children of your own you will discover the same as I did.
Wisdom is an elusive thing that usually doen't happen until 30, if it happens at all.
In the mean time I would suggest you love your Mom and Dad, they won't be there forever and they are the only ones you ever get. Just as children are blessings and gifts so are parents, the pendulum always swings both ways.