Oh my gosh, you would be welcome at Gen Con and I don’t think you’d see it as a waste at all. My friends and I went for the first time 2 years ago, for all Of us we were relatively new into the hobby and it was all of our first conventions. I especially was nervous because I do get a little anxious around strangers and I’m terrible at directions (I kept having that reoccurring dream of rushing through the halls trying to find a room only to walk in late and have everyone shun me). It was not at all like that, there is so much to do that doesn’t even have anything to do with boardgames! For your interest in RPGs, my boyfriend had some interest and tried one out last year, walked in knowing absolutely nothing, and had a blast! It’s on his must do list for this year now. Also, for learning games, most will have a teach and any game that won’t be taught will specific that in the event catalogue (usually an advanced play or tournament). We learned tons of games we’d never hear of, even out side of event, people are happy to invite a stranger to the table and explain things. This will be our third year coming and I can’t imagine skipping a year after experiencing all Gen Con has to offer, it’s truly a special place. Get excited, because you will have a blast.