How would you describe this person?

I have this stepmom and I don’t know a word to describe her.

She thinks she’s perfect and the most intelligent woman in the world.

But she’s rude and I would even say subpar intelligence wise.

She’s sort of antisocial, she likes to think that she’s just too “real” and people don’t understand her and that’s why she doesn’t have friends.
Like, she always gets in trouble at work for saying things, and she’ll come home and complain to me and my dad as if she doesn’t understand why she got in trouble.
I even asked her if she thought people could be genuinely nice right-off, and she said no. She said people that you don’t know that are nice to you are fake.

She’s almost 60 and she’s really irrational. I was explaining to my dad how annoying my Economics teacher is and gave an animated example of how he yells at us and then laughs because he thinks he has power…anyway, she came running in like, “Oh my God, what’s wrong? I heard yelling, what’s wrong?”

She’s always like that. If she stubs her toe or something stupid like that, she’ll yell out and continue yelling until my dad comes to her rescue. We were watching American Idol awhile ago and I was talking to my dad when it came on, and she freaked out because she didn’t hear if the girl was “safe” or not, even though everyone was cheering. She was just like, “OH MY GOD, I DIDN’T SEE IT. I DIDN’T HEAR IT, WHAT HAPPENED, WHAT’S GOING ON? WHY ARE YOU TALKING ANYWAY YOU WATCH TV WITH YOU EARS.”

And she’s super-Christian…here recently. I used to say “Jeez” all the time and she never had a problem with it. The other day she was rushing me to get ready to go out and saying I take too long to put my makeup on, and then just as we were heading out the door, she decides she wants to read the mail. So I said, “Jesus, can we just go?”
She went through the roof. She said I’m forbidden to use the Lord’s name in vain in her house and that she hopes I “choke on my rebellion”.

And that’s another thing. I’m a straight-A student, I don’t do drugs, I’m not promiscuous, I hardly ever even whine about anything, and yet she thinks I’m a rebel.

My two guy friends came over last weekend and we walked down the street without telling my dad. We’ve done it before, so I didn’t think they would care.

I got into a lot of crap for it. Because I texted them while we were walking and they said be back before dark. And I got home like 5 minutes after the sun went down. Apparently that was “disrespectful”, so now I’m homebound.

And yet, her granddaughter who is around my age wrecked her car about a month ago, her mom wouldn’t pay for it, so she went to live with her boyfriend and told her mom she wasn’t coming back until she fixed her car.

I mentioned that I could be doing stuff like that, but I’m not.

And my stepmom threw it in my face that her granddaughter is 18 so she can do whatever she wants, if I tried to do that she would send me back to live with my mother.

Now, if I told my dad that she said that, she would deny it to her grave. And he would believe it.

To her, and him, she can do no wrong.

I just can’t think of a word for her. She’s childlike, annoying, a liar, hypocritical…and yet she and my dad and her parents think she is sent from heaven.
She even told me last night that she thinks she’s a gift from God because she’s a social worker.

How would you describe her?