The locked door

My name is charol.I am going to tell you about a mistake I made,which probaly i will regret throughout all my life.Firstly I live with my mum sara.She is a cook at a posh hotel.I used to live with my dad though he left and never came back.Secondly i am the youngest.I have an older sister called carey.The thing is ,my sister carey is mental.I don't mean it in a bad way though she has a mental dilema.My mum is ever so worried about her.She never speaks but sometimes screams.We have taken her to the Doctor and he has said that carey has seen something that may have shocked her.Thirdly there is a door.It leads up to our attic.I have never been up there neither has carey.Only my mum has and has declared that room must be shut at all times.Well I must admit I am quite nosy.Mum tells me to stick my nose out of things,but I simply can't.I was there,sitting on my bed thinking about carey.I then realized that there could be a secret to that room,which might realate to careys mental condition.One day when mum went shopping,me and carey were at home.I left her in the dinning room,gave her some tomato soup and went up to the attic carrying the keys.I carefully opend the lock and went in.It was full of old antiques and junk.I walked around and heard footsteps!!!I spun around and saw carey,standing in the doorway.She was pointing towards a old dusty box.I went and opened it.Inside were pictures of my dad.Righ at the bottom there was a small book.I peeked inside and found a letter.it read:dear carey
this may be a shock though i have to leave.This is not going to work out for me and your mum.But don't ever think I abandoned you lot.It is the right thing to do and i hope you will try to understand.I will always love you.love dad.
when I finished reading I had tears in my eyes.Suddenly I heard mum coming in from the door."mummmmmmmmmm!!!"i cried.Carey followed."charol what's the matter with you?"she said.I showed her the letter.She was quiet for several minutes."charol."she wisperd."im soo sorry i know i should have told you from the begginning.but i had no choice.i dindn't dare say a word in front of carey.oh im very sorry honey."she then burst into tears.Carey came and was holding a picture of my dad."dad."she mumbled."yes darling dad."mum smiled.Carey started to cry.Then suddenly she fainted."dont worry honey. it isnt your fault.carey will need some rest.let her be."mum smiled once more.Even though she said it is not my fault i will never forgive myself.If you can't realize my mistake it was being born.my dad did not want me.I dont know why though,But he only had space for carey in his heart.That is why my mum left my dad,only for my sake.Carey was shocked because she loved dad and was more close to him than mum.Thats ok with me.I have a mum and sister who love me alot.