Forum:Need urgent feedback please!

Hi i've recently made a short story (or the first chapter of a large novel), called Sleep Tight, which was made for GCSE course work. It's a draft and so i know there are many spelling mistakes, and they will be changed for the final thing. However i need some feedback and if you can some highly critical views too so i can make it the best i can for the final thing. I'm thinking about making a whole novel, which i'm likely to try and get published. As this is for GCSE i really need help, and that's why i've asked publically. Thanks to anyone who takes the time to read it!