My credit score has dropped considerably in the past year from ~700 - ~600. This is my first credit card so far, and have only used mainly debit in the past.
Thing is, I'm not sure why it's dropping. I've tried looking up the issue online, which suggested not paying bills on time or not abiding the rules. I have paid all my bills on time, and in fact, paid them in full (not minimum payment, but the payment requested).
The only two things I can think of that might have contributed, but have little proof/correlation to harm would be two things. Sometimes, I reached near the credit line in between payment months, so I would make a payment to make room for credit line (I have not gone over my credit line). Second, I spent more each month the bill came in, with about a $50 increase each month.
Any help here? I've tried looking online and those "problems" others have don't apply to me.