And finally, if that’s true, and I am not mistaken, you can make transactions in a non-replaceable way (non-RBF), you should look into yourself before doing anything, test with new wallets and once you have mastered it, then go ahead.
This doesn't solve the problem as likely a lot of mining pools have their nodes set to Full-RBF policy which allows replacement transactions in any case, even if your transaction flags it's non-replacable.
The only solution is to confirm aka mine the transaction undercover, i.e. without making it publicly visible, like via slipstream.mara.com.
BTW, there's a forum rule which frowns multiple consecutive posts by same user within less than 24h. If you want to post some additional things, you can simply edit your last post when it's the last one in a topic. It's no rocket science...