Help I just read about Dust Mites and Bed Bugs now I'm scared to go to sleep?

LOL it's 3AM and I don't want to go to bed I'm scared of Dust Mites and Bed Bugs just read hole wikipedia about them I got my feet lifted off ground in my chair and stuff someone give me some kind of piece at mind here t.t I usually brush my bed off and shake my blankets off before I go to bed, does that get rid of dust mites? And how do you tell if you have bed bugs or not, I never noticed red dots or itchy stuff when I woke up, does everybody have dust mites and bedbugs?