I like it but I think there should have been a transition between Jeckyl getting angry and her going to her room. Like maybe she passed out, and they carried her.
8th page of my story

Obvious or not, it makes the story better adding the transition. Or make a new paragraph. Ending the first one with her passing out and then beginning the next one with her saying what she said. It is good but I am just giving you tips. I have done several stories before so I just wanted to share some things I have learned.
Dad: What is in her? Oh no.
Jeckyl: What dad? (Tons of thoughts were running through my head and they wouldn't stop. I grabbed my head in pain)Ow!
Lydia: It is starting. Hide! Now! Go! Jeckyl calm down think of your friends.
Jeckyl: What is happening?!?!?! It hurts! Help me please! Make it stop!
Lydia: This is something you are gonna have to go through on your own sweetheart!
Dad: What is going to happen to her if the Killers Blood takes over?
Lydia: She will have to be chained up until the Killers Blood stops running.
Jeckyl: (I took a deep breath and looked at my dad. He was terrified. He wasn't scared of anything ever.) Why is this happening to me!?!?!
(As the time passed i started feeling less and less angry)
Lydia: You okay in there sweetheart? I didn't hear anything so I came to ask.
Jeckyl: I don't know yet but just to be safe don't come in.
(I peeked through the crack in my door and looked at my dad. He had a worried face on, he only ever had a worried face when he thinks something bad is about to happen.