How can I get rid of blackheads and keep them gone?

How can I get rid of blackheads and keep them gone?

I wash my face twice a day and I use oil-free makeup. I have tried Neutrogena, Clean and Clear, Proactiv and Biore products along with clay masks, blackhead removing strips, and topical ointmets such as benzoyl peroxide and salicic acid, but I still have tons of blackheads all over my face. I also used the blackhead removing tool, but it just hurts and then the blackheads are back the next day. Before I go spend money on the more expensive products or go to the dermatologist does anyone have any advice on what I can do?