There is no Santa Claus in the content-creation business. Today's powerful ads are the results of thousands of hours of research, thought, and experimentation. Along the way, even the most talented content-creators make mistakes. While we learn a great deal from our mistakes, we still strive to avoid them. Don't be cynical about potential results.
Good attitudes generate good results.
Don't sell your services. Instead, provide solutions to your potential clients' problems. Don't forget the importance of research. Know your client. Know your competition.