I am terrified of spiders!?

So, Its summer and spiders are all over the house since we keep the windows open. I am terrified of spiders. The ones that I see at my house are huge their the size of a quarter well their stomachs are. They have ling legs and they run sooo fast. On friday night I saw 2. I actually didn't sleep at all because I was too afraid to see another one. Just s minute ago I saw one running fast heading towards the closet. Now its its in there and my closet is stacked with blankets it'll be impossible to find it. So now im so terrified to the point where im not going to sleep AGAIN until my fathers kills it. Its about 11 at night now. Im tired but im terrified of it. It could crawl on me. What should I do.? I don't want to stay up all night. Help.