Leave Good Debt and History on Your Score
Anything that is on your credit score that is old, but good, you should leave it there. Having a good, long credit history can put you at better odds when it comes to using your credit score for additional things that you want to do with it, such as finance a home or a car.
Less Looks Over Time
Squish all those loans together at the same time when having someone check your credit score. You want to make sure that they are not hurting your credit in the process. The more views, the more your score is going to dip down.