Confrontation

I don't like confrontation but at my job it's bound to happen. I don't like fighting or people getting angry. I also don't want to turn into as A-hole but I feel like I have no choice. I work at a financial institution, Selling money orders, giving small loans, paying bills etc etc and we always have customers who owe us money or we need to get information out of to make sure their not doing anything suspicious.

When you ask them a question even a simple one they all of a sudden turn into satan. It makes me anxious. That or angry but I can't say anything because I'll lose my job. They only way I see out of this is to start being more mean or strict you could say because that's the only way I feel I can protect myself. I don't want to be rude but these people have left me no other choice. I can't keep feeling anxious hours after leaving work just because one person wants to be a jackas to me. I have to stop caring about these people because they obviously would throw me under the bus if they could and they'd have no remorse. I hate to think the worst in people but God I'm sorry but these people are selfish a-holes, rude, stupid blah blah blah! I'm tired of it. This is starting to turn into a rant but I just don't have anyone else to talk to about this.

One of my teachers said how you react to people is your choice. Well, I can do that for so long but some days it gets to you, it just does I'm human I mean come on. What do I have to do do I have to treat the stupid people like their stupid and treat the rude people rudely because I'm tired of feeling anxious I'm just going to stop caring maybe that's my problem.