why cash games are so tempting....

Got home from work last night and played a few $12 180 man. Was 2/11 in my last game and shoved k8 into qq so gg me. That kind of pissed me off so I decided to jump into 1/2 nl game. Sat down with $200 and left 13 minutes later with 600. I used to play a lot of cash but I can't deal with the big swings .