If I was not read my rights when I was being arrested, I'm a minor and my parent was present, is it legal?

If the police have probable cause or an arrest warrant, they can arrest you. The presence of your parents is irrelevant. Their failure to Mirandize you does not make your arrest illegal; however it (generally) means that any statements you made to the police following your arrest cannot be used against you in court.

They do not have to read your rights to you. It only matters if you confess after being arrested, basically. You need to get an attorney for the case.