I'll use second-tier cursing like "damn" and "hell" occasionally depending on who I'm with I guess.
Occasionally if I'm by myself and have a lot of nervous energy I'll just say "shit, shit, shit...", but I never bring out the first-tier cursing with actual people (and I don't curse in my head that much to begin with).
I usually dislike cursing because it often (not always) sounds inelegant, but it's not a big deal and I don't mind when other people curse (as long as it's not to the level where it becomes unintelligible XD )