Premiumbeat.com has an excellent article on how to avoid getting too attached to your temp tracks as a video editor.
Here’s the problem:
First of all, as a good composer friend said recently, temp music is called temporary for a reason and it should stay that way. If you’re going to use temp music you should do so as little time as possible, otherwise all the people who are hearing it time and time again are prone to be wedded to it. So don’t leave it in too long or it will burn you in the end.
Read the solution here.