Don't quit man. You are one of the luckiest poker players in the world and this is only 10k hands. I admit that 25NL 6max (at least at FT) is wayyy better than it was even a year ago so don't overthink things. Just try to adjust and play every player instead of a limit. This has helped me. I'm tight as crap at some tables and very aggro. at others it all depends ld0.