I have been a customer service agent for atleast 3 years. I have been a support of eBay account for email and phone. also, I worked as a back office agent for macquarie australian account. i can say, dealing with other people will be your priority despite everything. You will learn to listen carefully and set aside their attitudes, their doings, and provide the needed solution. Its not because its your job to help, but the willingness to show how you can help the client.