I used to swear a lot. I decided to not swear at all (except for possibly mild swears), instead replacing most swears with minced oaths.
My family is Christian and I would get yelled at for swearing even if it just slipped out. So far, I don’t swear unless I’m feeling a strong emotion or acting impulsively, but I’ll usually say things like “F/eff” or “fudge” instead of the F-word.
I like to be “creative”, so my go-tos are usually “Go fudge yourself”, or “What the cluck?”
I might say “mother lover” instead of MF
I’m decently sure profanity became known as such because of either religious reasons or class division (along the lines of peasants vs nobles from early/medieval europe) and it just became commonplace.
I would say profanity nowadays though is a lot less taboo. It’s been normalized in culture (hip hop, city culture, punk subculture) and a lot of people are less religious nowadays.