The skin om my face is very bad. Whatever I do, the zits and blackheads keep coming back. I tried soo many things I dont't know what to do anymore.?

See the right doc. There are many treatments. Your skin needs to be evaluated to determine if you need topical creams, peels, laser treatments, good skin care supplements. Try proactiv, it does work.
Find cause. If you're a teenaged male, some acne is the norm. A dermatologist can almost always make even the worst acne disappear using big-gun medicines such as "accutane", and it's your choice. Otherwise, a good general physician needs to help figure out why you have this degree of acne. We do not want to miss cushingism, polycystic ovaries, or a variety of other possibilities and just treat the pimple.