Should I go again? I overthink too much!!!

So back in November I went on a “meet and greet” type interview to be a table games dealer at the casino. It was an actual interview that anyone could show up to to “audition”. They sent me this email soon after. I called management yesterday and asked if there was any word on the classes yet & he said that they are having another meet & greet interview next week because they didn’t have enough people for the class yet and I said okay I just wanted to make sure. Do you guys think I should go on this interview again next week to show that I’m really interested even though I already went on one? Or should I send a friendly email to them (even though I just called yesterday), asking about the classes so I can have the reply in writing? I really want this job.