I had a phase as a teen when I was constantly swearing. My parents told me that, it can't be that bad and it's really annoying.
And it's mostly an impulse reaction and we're kind of above that.
It doesn't mean that you can't express pain or anger. You're just not insulting people's ears if you scream "Aaaaah" when you bang your toe against a table leg or something. And your environment really doesn't deserve it. Most people are somewhat compassionate and you're just swearing while they try to help... that's not a pleasant environment for them to be in. It makes it harder to help you.
No to both questions. I just made a change and that was it. And it has never stopped me from expressing anything.
If anything, it lends more weight to the regular words.
A _______ criminal? Or a criminal?
You can still put the same emotion into the words, they're just not swear words. :)