Very much the same here (even down to having only one (non-swear) word I can't tolerate!). I can have quite colourful language in conversation, though it is very much a thing shared in my area. I use "****ed" as a verb quite a lot (not in a ~mature~ way, as in "I'm so ****ed for this test!"), as well as various swears as an expression of shock / horror. However, I think there is absolutely a level where swear words are too common. My brother, for example, throws in "****ing" at least three times in every single sentence and it is so tiring. It's all so "haha look how macho and unclassy I can be!".