Although COB is my favourite band and I like many metal bands, I am now listening to something very different - to polish punk. I do listen to blues and jazz too. Here's my advice: listen to various kinds of music!
@Draculesti27: What do you think of Silent Stream of Godless Elegy? I got their CD awhile back, and I just love it! I think I told people to check them out on the Vintersorg forum.