Credit cards

I started last year with a secured capital one by checking on prequalify and when it said I have prequalified I applied with a direct app and was approved with $99 deposit for $200 after five months it went to $500 within a month of getting approved for capital one I applied for open sky realizing $200 could be spent in a day lol I applied for open sky it’s no credit check but they report to all agencies and I put $500 down and that’s been my limit.. I’ve been considering closing it bcus it never graduates but I have to pay off $50 balance first.. I’ve read to not close any old accounts.. I hope that helps