How to stay motivated on your project?

I'm the type that likes to get done when I start anything.This being my first restore and Everytime I get to a good point I see something else that I should do before going further.Like today I was cleaning the seem seal around the trunk and trunk lid well I founf a 1/8 by 1/2 rust hole that I have to deal with now,no big deal in the long run but thats the stuff that discourages me but I know I have to get back to it or it will never end.Best way for me to get motivated is to lumber out to the garage and go full forward on an area and before I know it I'm getting alot acompliced.