Is this normal for parents to do?

I'm 15 and feel constantly being baby, treated like i live in an elderly home, or like I'm an idiot. all my friends (not stretching it...every single one of my friends feel this way) are afraid of my mom, and that has to be by what they see her act like to them as well as me because i never talk about my home life to my friends.i was at school orientation last night and we arrived there very early and my mom wouldn't let me leave her side just to talk to some friends because this guy was talking...even though it was to the people that where working on the presentation so it didn't have anything do with us. then my friend and her mom ask my mom about what elective or some sheet in the folder and she turns around and gives them a go-away-i-hate-you kind of look. her mom even came up to me and said sorry, witch they did nothing wrong. my other guy friend was sitting next to me and my mom kept glaring at me and him like I'm not supposed to have friends. they actually have started to scare my friends so much that it effects my social life. they tell me that I'm free to talk to friends within the restrictions they give me witch is: school,home,online/computer, rarely face-to-face, but they yell at me to go and do things with friends. I'm just about a straight A student pretty much what every adult i have met calls a "good kid" and yet they act like i have a probation officer. they some times say bad things about me to the person i work for (martial arts dojo) and even he said in his words exactly "i don't know or care what your parents say your a good kid". they yell at me about not showing respect when all i do is give them respect. I've been pretty much told that I'm not supposed to have my own thoughts and if i do shut up about them. i was told im not entitled to the same rights they are or that they apply more to them then me (talking about human rights and such like freedom of speech and stuff) i was also told stuff like they might force me to church with them, even though im not Christan any more and i have completed conformation (freedom of religion...that part makes me pissed). when i bring it up to them that im not being treated in the same way others are and all the facts about what my friends think and ask if they could pleas compromise, i get yelled at because im disrespecting them...although i say it as respectfully as i could. i would talk to like a councilor or something but I'm afraid to. pleas help