All those credit cards from college that initially hurt Chua, for example, helped him down the line. That’s because he never cut them up, creating a longer credit history and a higher average age across his accounts. Both of those numbers feed into the 15 percent or so of a FICO score based on the length of your credit history. A virtuous cycle develops when you have good credit, says Chua. More companies offer you credit, which raises your total credit limit, which means you can make bigger transactions but still use the same percentage of your total credit.
It’s been only a year since I opened my first card last September, and I already have a solid FICO score – 720, the last time I checked. That’s not a perfect score by any means, but it lands me safely in the “good” credit range, meaning I probably won’t have trouble getting approved for new credit in the future. I still have work to do if I want to get into the “very good” credit category, which starts at 740, according to MyFICO, but for a credit card newbie I’m not disappointed in my progress so far.