I’m 20 and decided a month ago that it was time to start building my credit, so I got a student Discover credit card. I had a 500 credit line, and used about 400 of it during my first month. I paid 250 of it before my statement came out and then paid the remaining 150 that was on my statement the day I got it.

So today I check my score and my score went DOWN 3 points this past month. All of the different categories that it showed me that determines the score were all marked “Good” except for “Length Of Credit”, which is marked “Poor”. It says that of my 3 accounts of credit, the 2 oldest ones are 2 years old - those are my student loans that I took out once I started college. And the 3rd being the card i just got.

So basically what I’m asking is what caused my score to drop? Does having my student loans active damage my credit until I pay them off, even though I’m not required to make payments on them until I graduate? Or was the way I handled my payments on my credit card the reason my score went down?

I don’t get it so I’d really appreciate any input