OP here with an update: I finally played my first tournament - a day-long "active" tournament (25m+10s time control) and was 3.0 in 5 games! The field ranged from 1100-2400, and there were a few strong club players. I blundered away a won game againt a 1650 by touching the wrong pawn in the endgame and in another game I managed to beat an 1800 with a wild attack which was well executed.
Most importantly, it was lots of fun and the enjoyment has encouraged me to play more chess!
For anyone interested in their first tourney, I highly recommend it. The strong players were happy to analyze my mistakes - which is basically a free chess lesson from a master. The enthusiasm of the competition is contagious.
I went to the tournament with a local "chess friend" who plays at my level. This is also a great encouragement; kind of like a "workout buddy".
Good for you!!
There is no such thing as "good enough" for OTB! For one there are many different divisions based on playing ability. But assuming you are unrated, just get out and try it, you'll see where you stand! It should be a great experience playing real people in serious games, naturally with some incentive in everyone to do well.