I have tried everything and cannot get rid of bedbugs?

Very, very hard to . Get rid of. Declutter entire bedroom & any other effected rooms. Check this site for instructions: http://treatmentforbedbugs.Com/ place all junk in tightly sealed plastic & dispose of it. Wash clothing, linens, towels in hot water. Dry on highest heat - then repeat. Place clean items in a sealed bag to prevent re-infestation. Steam clean what you can't place in drier. Vacuum everything.
High heat + vacuum. These parasites are extremely hard to get rid of. A combination of pasticides and basic approaches are used, with pyrethroids, dichlorvos and Malathion being the most effective pesticides. Basic non-technical methods include vacuuming up the insects and heat treating or wrapping mattresses. An insecticide called propoxur is effective, but the epa won't approve it as it might be toxic to kids.