I'm going to chew out the staff at my gym when I call them.
Why do you think you need to chew them out?
They are causing me tons of stress, and I feel like I'm going to go crazy.
Yeah, I get that you would be stressed. But you probably shouldn't curse at people like that. You could cancel your membership and find a better gym.
I am just going to insult them when I call and then cancel my membership.
As good as it may feel to swear at them and take out your frustrations on them, it's only going to make the person answering the phone have a bad day and that person likely never did anything at the gym other than answer the phones.