That is correct.

Although it is generally good to have established credit accounts, too many credit card accounts may have a negative effect on your score. In addition, many models consider the type of credit accounts you have. For example, under some scoring models, loans from finance companies may negatively affect your credit score.

Scoring models may be based on more than just information in your credit report. For example, the model may consider information from your credit application as well: your job or occupation, length of employment, or whether you own a home.

To improve your credit score under most models, concentrate on paying your bills on time, paying down outstanding balances, and not taking on new debt. It’s likely to take some time to improve your score significantly.

Too many cards is just one of the many factors that will affect the credit score.  Other factors should also be maintained eqaully important.