Though you're likely to have at least somewhat different goals in life and different ideas of where you'll be in five or ten years, you'll still have enough commonality between you to help each other move forward in life. This sense of familiarity might be the result of similar goals or past experiences, or it could just happen naturally, as soon as you start talking on the phone or exchanging emails. Either way, you'll each have some great advice to give the other that will be based on your own experience.
The common thread that runs between you will help you both to pull the other forward, especially when one of you might lag due to flagging confidence or fear of the future. Fear of success is actually as common a problem as fear of failure, and you two will be able to talk about feelings like these and help each other through them. It's possible that you'll remain friends for a long time, because this influence will give you a warm feeling toward each other -- a feeling of kinship and gratitude.