[Henry17]

I don't have any credit cards so I might be wrong but couldn't you just get a $2k card then over pay and effectively increase your card limit?

There are also secured credit cards where you give the credit granter $66k and they give you a credit card with a $60k limit although I don't know if these have any effect on credit score.

Also have you checked you credit report? Credit repairs relatively quickly so if you screwed up when you were <25 and are now 32+ you are probably fine.