I took the plunge too! Definitely a weird feeling, but oddly exciting when those bills hit, knowing that I'm actively shorting dollars. I also take solace in the fact that I literally can't hold any more bitcoin than I do currently, so byebye fomo and wishing I'd bought more.
Re: not DCAing -
I'll offer some unsolicited advice and say you should probably still transfer off platform to a hardware wallet periodically as a "DCA" to mitigate platform risk and squirrel sats away in self custody so you can still bank some freedom money. Despite how solid they've been for me, your strike balance is still only an IOU. NYKNYC