I am a boy. I 12 years old, still taking a shower with my mother. Is it okay?

You can't. 12 years old, already in the first grade, should be sexually mature. How can they give their mother a bath? Don't you have any impulse in your heart? Even if you are used to it, you should know that men and women are different and should be ashamed. So, from now on, don't take a shower with your mother. Even if your mother doesn't mind, you must resolutely refuse.