Yes, it does sound like you're venting and that's perfectly okay. It sounds like a frustrating situation.
First, I would have stopped giving him advice when I realized what he was doing
Second, why not just have some fun on the internet? Take advantage of your situation!! If they're willing to pay you to play, why not?
Third, I agree with the suggestion someone (oh, hang on - gotta give credit here!) ossobucco made to look for another job. You may not find one, but if you don't look, you certainly won't.
Fourth, use that internet time to search for No. 3 (job)

Or maybe you could do something completely different? Maybe this is a door opening for you.