<prompt> Human: Currently have 7 credit cards opened under my name. Just got done paying them all of, they all have a 0 balance. Please dont ask why I had so many open, it was stuff that I did while growing up, and I fixed it over the last year to pay everything off.Fast forward to the present, is it going to be better to close these and just maintain 1-2 cards only during emergencies? Meaning I probably wont use them for a few months in a row unless an emergency pops, or is it better to leave them all open and keep them at a 0 balance? Running the simulator on CapitalOne, it showed my credit would go higher keeping them all opened, but not sure how accurate it is.Also, if only keeping a couple opened, what would be the recommended ones? Below are a couple of what I got:CreditOne - CLOSINGCareCredit - CLOSINGCapitalOne Two cards opened - Should I close one?Merrick Bank - Considering keeping openedComenity GameStop - Thinking about also keeping openedCFNA - ClosingThanks for any advice! And trust me, over the last few years, I learned where credit cards can lead to, and literally only use my bank account with my available money I earn now.  <response>: If you are going to close a few, close the newest ones. When applying for loans in the future the length of your credit history matters. By keeping the oldest cards open it makes you credit history much older. When you open a new card down the road the old cards average age will decrease with the new card being added to the average. If the average is low then it will decrease your credit score. The older the average, the better. However, the average age of your credit is one of the more minor things that effects the score. 