I never used to but since turning 18, I have become utterly foul mouthed on many occasions.

Yeah.
But never in front of kids, and rarely in front of strangers, family, or older people. (exceptions: strangers in bars.) It's not about if cursing is bad or not, it's more-so about respect.

~ i'm creating a dictionary for alternatives the cursing that don't sound pathetic, so no, i don't

My father used to say, Profanity is far too beautiful a language to waste on everyday use.

Where i live everybody use it in all ending words of a phrase...and fter 10 years living beside them....i don't... but if i need to curiously it's only in spanish even if nobody understand me!

Sometimes.
Never to children, strangers, old people, or family, and only in appropriate settings.
Sometimes when I get very angry I do, but not with people. I actually find it more effective in scaring people I am pissed at by mixing weird insults with swears. Usually confuses them XD

Not so much, but on occasion - usually when I'm startled or I smash my toes against the corner of something for the billionth time, and that's mild swearing at best. I don't say the F-word and I don't profane the lord (i think that's what it's described - "jesus!" this and "god..." that). Most of my swears consist "cheese and crackers!" and "criminy!"

I've been living with and around ski coaches for my entire life. So, fuck yes. It's not even something I think about anymore, but I stop when I'm around younger kids or other people who would find it disrespectful or agitating.

Often... Like daily.. If I didn't swear daily then there's something wrong with me.