Lots of talk about sleeping in, procrastinating, pretending to work, etc. etc.
I used to be a Software Engineer and I can relate extremely well. Now I am attempting to be a travel writer and photographer, driving around Africa. I spring out of bed in the morning, and have some of the best days of my life, day after day. It's hard, but I love it much more than my previous live. The money is not so good, but what do I need money for anyway? Gas in the tank and food for dinner and I am happy camper (literally)
My advice: We each only have one life, make sure you live the one you want to. Save some money, quit for a while and try your dream. If it doesn't work out you can always go back (I did, twice already, just to earn fast cash then hit the road again. I am hoping this time there is no going back - it's going OK so far)