Hi Camille,
What you're bumping into now is something so many of us recognize — that strange in-between period where half the room knows your truth and the other half is still using old information. It can feel disjointed and a little surreal, but it's temporary. This stage never lasts as long as it feels like it will.
While you're deciding how widely you want to come out at the health club, it's completely okay to let things settle a bit. You don't owe anyone an urgent announcement. If someone who hasn't heard yet uses your old name, you can just gently correct them in the moment: "I go by Camille now," or, "Actually, my name is Camille." Most people will adjust quickly once they hear it even once. And ignoring it occasionally — especially on days when you're tired or low-energy — is also fine. You don't have to be "on" every time.
If someone keeps deadnaming or misgendering you after you've already told them, that's different. Consistent misuse after a month or so, especially in a setting like yours where the community values care and respect, gives you solid ground to raise the concern. How you choose to handle that is completely up to you. Some people prefer to be direct, others take a softer approach — and based on the warmth and gentleness of everything you've shared here, I imagine you'd lean toward the latter. Either path is valid if it protects your well-being.
You've already done the hardest part: you trusted people you love with your truth, and they embraced you without hesitation. The rest is just the world catching up to you one conversation at a time.
Camille is a beautiful name, and you deserve to hear it spoken with respect everywhere you go.