Here’s the thing. There are two possibilities. You are either a troll or you aren’t.
If you are a troll, ha ha, very cute, whatever.
If not, just stop for a minute to think about what you have done here. You are hoping to get involved in a highly technical, challenging and potentially deadly activity. There are people here with a massive amount of experience in this field, and I’ll bet that most of them have lost a friend or two doing it - I certainly have. People who could be a terrific resources for you as you start your long journey.
You post something that is guaranteed to trigger virtually every serious rebreather diver, and then you mouth off when you get the predictable blowback.
It would be tiresome to type out all of the reasons why “I wanna brag to randos on a dive boat” is an awful reason to dive to 500 feet. But let me just say this.
I would bet that there isn’t one person who is capable of safely diving to 500 feet who would consider that an acceptable reason for diving to 500 feet.