Just another gripe about how long it takes to get just "one" confirmation. I want to gamble my bitcoin away as fast as possible but the confirmation time takes sooooo long 
The obvious advice of course is to find an online casino where you play with house credits which can be freely exchanged for bitcoins.
If you're intent on gambling with bitcoins more directly and wish to restrict yourself to sites that require at least one confirmation then you could try gambling with smaller amounts (or, equivalently, acquiring more bitcoins). By splitting your holdings up you can play with the various pieces simultaneously and arrange to always have confirmed outputs to hand while you await more recent winnings.