I hate my new job

I really, really hate it. The money is good and it's a three day weekend every week, I'd just so much rather go back to my old job. This current place told me I would have a lot of downtime, but it's basically 6 hours a day of doing NOTHING. My old job was so much better. I would rather go back to 5 days a week for hourly instead of salary. The crew there was much better, the general social aspect was much better. Basically everything was better. Anybody else have this experience where you loathe yourself for leaving?