I hate ants

Last Saturday, I found that my room was crawling with ants. I was wondering why there were ants in my room, but I did not find the answer. The ants crawled through my bed to my desk and trash can. The ants also crawled on the wall. That is, I could see ants everywhere. I was annoyed with those ants. It is useless to kill them. No matter how many ants I killed, it appeared double ants I just killed. Because I don’t want to sleep with those ants, I cleaned up my room and wiped the floor immediately. I washed all my stuff which was on the floor. It is a hard task to destroy all the ants. I don’t know how to deal with them. All I know is that I really really hate ants.