I received my financial aid and had enough to technically cover my past balances now it says I have “999 credit on account balances” I’m confused does this mean how much money I have left over or how much I owe?
Left over. You should receive that back from the college in whatever way they reimburse (check, ACH to a bank account, debit card). Usually that’s done some time after the drop/add period for the term in which the FA is granted.