Black heads

I've always had bad skin. I've been to a dermatologist to get rid of my cysts. But my skin is still all clogged. I've tired every thing. I have black heads all over my face.
Has any one or know of any one that has had microdermabrasion to get rid of them and if it works? Or to get rid of blemishes. Im 30 and would love to just have nice skin once in my life.
Or any other treatments I can get done to fix the blocked pores?
Im single and have always felt embarrassed about it. I even feel uncomfortable when im at home alone with my kids.
Thanks ladies.