
When determining how long your credit history is, consider the age of each account. As an example, suppose you have three credit accounts: Card One has three years of age, Card Two is five years, and Card Three has one year. Your credit history is therefore three years old.
15 points
Your credit score can be affected a lot by the length of credit history. Credit scoring models include the age of your oldest account when calculating your score. Check out your credit score to see how old you oldest account is. This information can help improve your credit score. However, the average credit score in America is 711; there are many things you could do to improve your score.
128 points
You can increase your credit score by paying more on your credit cards than the minimum and by reducing the total balance on all of your credit cards. To prevent going over your credit limit, it is important to set your own credit limit. Lenders will be looking for evidence of credit management that has been consistent over time. Your credit history counts for approximately 128 points. It shows the date you opened each account and the last time you made a payment.

You can't get a loan nor a credit card if your credit score is less than 128. However, there are some ways to increase your credit score. It may take years for your credit score to reach a high point, but it is possible.
Age
Your credit history is one factor that can influence your score. The general rule of thumb is that the more credit accounts you have, generally, the higher your score. You can also lose your score if you close a credit account. There are many ways to minimize the effects of closing a credit card.
The age of your credit history is calculated as the average number of years that you have had the same type of accounts. The average age of three credit cards is three years. If you have five or more credit cards, your credit age would be seven years.
Asking hard
It is important to monitor your credit score regularly and be diligent about it. Many banks offer tools that allow you to check your credit report and credit score for free. Experian offers access to your FICO(r), Score for free. It is important to monitor your credit reports on a regular basis in order to minimize the impact from hard inquiries.

Lenders will request a copy your credit report when you apply for a loan. This is known as a difficult inquiry, and it can lower your credit score a little. After one year, however, these inquiries are no longer included in your credit score. They will also vanish from your credit history after 2 years.
Average age of an account
When looking at your credit history, the average age of your accounts is an important factor to consider. A longer history will improve your credit score. However, a shorter one will result in a decrease. Your credit history can be affected by many factors, such as your age and demographics. Credit accounts that are open and current can help increase credit history's average age.
A long credit history is a benefit when you apply for a loan or a credit card. You will have a lower average age if you open credit accounts. You should be cautious about opening new accounts unless they will help you achieve your goals.