But if everyone is wearing bright colors and Bling, isn't that like when everyone in a room is yelling and you can't really hear anyone?
Yes, that's completely true. Everyone is clawing for attention, and in doing so, they make a somewhat uniform tableau. When my partners walk down the street in the morning before the competition, dressed in comfortable sweats, but wearing their hair and face, they're way more conspicuous than when they put on the shiny dress and get on the floor among all the other shiny dresses. The context affects the impact.
But if you're trying to be heard in a room where everyone is yelling, you still get more mileage by yelling yourself then you do by whispering. It is very much an arms race, and unfortunately there is no way to gain a competitive advantage by not playing it.
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That's pretty weird, isn't it? And in a lot of ways, it probably doesn't sound like much fun. At best, it involves stepping well outside of your comfort zone. At worst, it can feel like a betrayal of your inner self, putting on a face that isn't at all you.
There are a couple of ideas I encourage rookie competitors to try on for a size, given these psychological challenges.
The first one is,
the value of the competition does not have to be measured by final placement. There are so many other goals you can use them for: challenging yourself to perform in public, which is a useful life skill; dancing all-out with big adrenaline in a way you can't really match on any social floor; living out a fairytale prince/princess fantasy. Just to name a few.
And if your goals in entering a competition are not restricted to "win or bust," then you're freed from the pressure to play all the stupid little metagames that competitors do to gain the smallest edge. Wear what you want--the costume that makes you feel confident and genuine--in full knowledge that it might put you at a disadvantage. Because placements aren't why you're here and aren't how you will measure your success, that disadvantage is meaningless.
The second idea I encourage rookie competitors to sit with is,
competition is not a requirement to become a good dancer. There are several obvious advantages to competing, with respect to goal setting, deadlines, and organizational structure, and I think that ballroom teachers gravitate to competition precisely because of those things. But if you are sufficiently self-motivated that you can light the fire under yourself, then competitions might just be a distraction.
My wife is like this, in fact. Loves to dance, loves to practice and grow, but really doesn't like competing. She only does it as a favor to me, because I need that structure in order to keep focused.
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So, my advice to you?
You don't need do anything crazy in your first competition. Your pros and coaches may push you to invest heavily, both money and mindset. That is to be expected, as upgrading your dancing as efficiently as possible is their main goal, and going deep into competition is a well-tested avenue for doing that. But you do have agency enough to say no to the things that sound like a bridge too far, and you should use that agency.
Try out the contest, in whatever manner makes you feel comfortable. Watch. Listen. Observe. Feel things. At the end, think about what you liked about the experience, and what you didn't. If, on the balance, you liked it more than you didn't, you can try going a little deeper next time!