What are some catchy words that could replace swearing words?

I’m trying really hard not to swear, but swearing words are usually really catchy and once you say it, you find yourself saying it again and again.
So I’m looking for a replacement, if any of you have a specific word that you use, or heard somebody use it, please share :)
and shorter ones would be better as well. It’s kind of hard to say a super long word all the time. THanks!