I think it helps to develop a thick skin and not take things personally because it can be disheartening to send out lots of emails to affiliates and not receive responses, particularly when you discover that some of your affiliates have decided to opt-out of SFI. It's important to realize that SFI is not for everyone. Many people are in search of a get rich quick scheme and aren't prepared to dedicate the time required to be successful in SFI