Sounds like you need to take a look at your overall skin care routine.
I always try to look for factors that would be causing the problem.
eg work environment, skincare routine, health issues, hereditary factors, stress levels etc
Basicall look at the overall picture.
That product ou mentioned - are you using it every day?
It sounds like it might be a bit too harsh on the skin using it morning and night - you could be basically stripping our skin too much
I would suggest ou go chat with a good beautician in our area so she can see your skin.
If not put in place a nice skincare routine - cleanse, tone, moisturise.
Exfoliation 2 times a week is enough.
From what you said your pores are open and you have blackheads - you didn't mention spots? On this info I would suggest the Eve Taylor Balancing Range - why not book in somewhere for one of their facials and ask for them to do extractions ( of blackheads) as well - will get skin cleared up nicely and set you off on good skincare routine.
Hope this helps!