I had been poling for less than a year when I did my first competition. I really wasn't expecting to get in. It was a regional competition and you had to send a video to get in - I think I'd been poling maybe 9 months or so when I applied? I didn't score well, I believe I placed a few points away from dead last lol. So no, I don't really think I was "ready", but it was a great learning experience for me, I met some awesome people, and overall I am very glad I did it. It was awesome to share my dance for an audience and be on stage and I couldn't wait to do it again. I'd guess almost no one feels "ready" the first time they perform or compete because it's a new experience, but it's very rewarding!
Just make sure that if you choose to do a competition for the first time, go in knowing it will be much higher stress... try not to worry about scoring, just focus on bringing out the best in yourself rather than winning or impressing the judges. Same advice applies to a performance - it's never going to be perfect, so just focus on sharing your awesomeness with the world. Either way, performance or competition, you're putting yourself out on the stage which is a huge accomplishment in itself! If you're considering it, I would encourage you to do so because it's so much fun, a huge adrenaline rush, and great for pushing yourself in ways you normally wouldn't. Hope that helps!