What are the alternative words you use to avoid saying the standard swear words?

My friend is saying 'bhen-stokes', alternative for the Hindi translation for sister-fu**er which is bhenc**d.

And I have been using the same word for all of my interactions in which I use the word. Although I have been trying to become clean of all the swear words for the last 4 to 5 months.

It does not look good, I have found. It is counted as provocative, impolite, and many more things. And people actually go away from you. I myself have found that I have been going away from my friends who used too much of swear words.
What are the alternative words you use to avoid saying the standard swear words?
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