Don't Make These 3 Credit Card Mistakes I Did

I made these mistakes with my credits cards so you don't have to.

Stack of colorful credit cards
Stack of colorful credit cards

Image credit: Getty Images.

Did you know that credit card mistakes you make now can affect you for many years?

Unfortunately, this is a lesson I learned the hard way. When I was in college, I made a number of silly mistakes when it came to getting and using credit, and it took my score years to recover.

While I have a really good credit score today, unfortunately it's not as high as it would've been had I not made these errors in my college years. The good news is, you don't have to make the same mistakes -- just learn from my missteps and avoid these three big ones.

1. Opening too many credit cards

Would you believe that when I went to college, credit card companies were invited on campus to set up booths and entice unsuspecting 18 year olds to open credit cards? Not only that, but these creditors were allowed to offer swag, including free T-shirts and beer koozies, if you just filled out a little form and signed up for a card.

Unsurprisingly, I ended up with quite a few credit cards along with those shirts. Not only that, but when I hit my favorite stores and was offered a discount at the register for opening up cards, I tended to say yes.

By my junior year of college I had about 13 different store and major credit cards. I also had a few thousand dollars in credit card debt and only a summer job to try to pay off what I owed. Fortunately, I realized things were starting to get out of control and made paying off my debt a priority, which I was able to do by the end of my senior year.

Had I not changed course, I would've graduated with a substantial amount of credit card debt on top of my student loans. As it was, I paid hundreds of dollars in interest -- and I'd have paid thousands if I didn't make it a point to pay off the debt ASAP.

The CARD Act of 2009 changed some of the rules to restrict marketing to college kids and make getting credit harder -- but there are still plenty of student cards young people can qualify for. Opening up too many cards at any age is a big mistake because it can make it too easy to get deeply indebted. Plus, each time you open a card, you get an inquiry on your credit report and reduce the average age of your credit history -- both of which can hurt your credit score.

2. Missing a payment

One of the big problems with having so many credit cards is that it can be hard to keep track of all of them. This ups the chances you'll miss a payment -- which is exactly what I did. I paid my Limited store charge, but not my Express card, and I ended up with a 30-day delinquency on my credit report.