Can Bankruptcy clear Student Loans?

I am a single mother who took out a Student Loan to take a hairdressing course about five years ago. I worked in a few salons, but after paying for my chair rent, supplies, and sharing half of my receipts with the salons, I realized I can make more if I work in a grocery store as a cashier. That’s where I am now, and I am receiving collection calls and they threaten to seize my wages and have phoned my employer. After I pay my bills, I have no money left over to put anything toward my Student Loans. What can I do? Is bankruptcy an option?