If you have problems making payments look back to your budget to see if you can increase resources or reduce expenses.
You should also consider repayment options like graduated, extended or income sensitive repayment. This may free up some money each month.
Should problems arise, contact the holder or servicer of your loan immediately. They can provide more information and guidance.
You may be eligible for a deferment or forbearance. You may also consider Federal Loan Consolidation for federally guaranteed student loans.
Talk to your financial aid administrator about your options.