Headphones

Hello, I have recently purchased my first set audiophile headphones, I went with HD 560s after reading tons of reviews to clarify it was a great choice for gaming and music , As I'm also playing videogames and I wanted a headphone that would suit for both needs, I've had Hyperx Cloud 2's Before for 5 years, they did suit my needs and got what I wanted but it was time for an upgrade , And so far I really don't like my experience with HD 560's,, It's really uncomfortable on my head for long sessions, the grip is too much like it actually HURT me on the first day, Songs do not sound as enjoying, pleasing and soulful like it was, I have tried different EQ profiles, the one that Oratory posted aswell but I just simply cannot get the same enjoying experience from same songs, it just steals away all the musical experience and joy, it's missing sharpness, Treble sounds kind of grainy, Soundstage is.. off, Is it my ears that don't like "analytical" Or what's going on? Sounds is not as warm as it was on my last headphones, I'm running them with my FiiO K3 which I think is enough for running those headphones Its' been quite uncomfortable and disappointing experience so far unfortunately, I have seen subreddits people comparing HD 6XX's with HD 560s and why/how hd 560's are better, Should I get rid of them? If so , what kind of headphones would you recommend me buying? I just can't believe that my Cloud 2's sound better and enjoy music way better than HD 560's, I was expecting vice versa.