How do I borrow more money from subsidized and unsubsidized loans?

The amount that is awarded is limited by your grade level, so chances are you simply aren't eligible for more from your sub and unsub loans than the school awarded you. However, there is one exception to this. If you are a dependent student, your parent can apply for a Parent PLUS loan. This is a federal student loan that is in the parent's name. If approved for it, your parent can borrow up to your entire cost of attendance. If your parent is denied for this loan, the school can increase your own unsubsidized loan by $4-5000 (depending on grade level). If that isn't enough, you have two options: 1. Appeal the denial of the PLUS loan, or 2) Apply for a private student loan from a lender such as a bank or credit union. If your parent was denied for the PLUS, but still wants the loan, he/she can either reapply with an endorser (a co-signer), or appeal the decision. About 75% of appeals are granted, so it's definately worth a try if your parent has marginal credit. If the PLUS isn't an option, you can apply for a private loan yourself, but the interest rate will be high and you will almost certainly need a co-signer. However, some lenders (such as Sallie Mae) have an option that allows the co-signer to be released after you make a certain number of payments on time.

https://www.usa.gov/financial-aid