+1 to the graphic EQ suggestion - try to get one with as many bands as possible. Your Audiogram is likely only octave bands, and it's very possible you have some notches that are more narrow than octave bands - so experiment with the individual sliders. I really would advise you to think about putting a limiter of some kind on the output, just so that you don't damage your ears even more.

If you need more gain in a band, consider buying 2 of the graphic eqs and run them in series.

-Scott