Rock on with your bad self!
As a previous poster mentioned, I have also been told that CRNA school is "the leveler". I would not worry at all. And certainly don't let any other people take the wind out of your sails by implying that you're not doing the right thing, or that "you don't even know what you don't know".
They don't know what you don't know either.
Although everyone is entitled to their own opinion based on which they can make
their own life decisions, I don't think anyone has the right to opine that you've somehow shortchanged yourself or didn't put enough time in. Everyone makes their own decisions, and just as I wouldn't call someone who took 5 years before applying "slow, unconfident or unambitious", nobody should be implying that by applying with 6 months experience you're "lazy or a patient hazard". I'm sure the application process alone is like a full time job.
Requirements are set at 1 year for a reason. If schools wanted you to have 3-5 years, that would be the requirement.
I personally would rather invest time in trying to become an experienced CRNA rather than an experienced nurse. They are two different things.
Congrats on everything. You deserve it.
You're an inspiration to those who have decided to go for it straight out of the gate. Which is the main point of your post- not to invite detractors to argue with you.
A