<p>Is there a reason your parents aren’t contributing outside of them being “deadbeats”? Any circumstances–supporting grandparents, medical bills, etc.? If you have special circumstances you can try to send them a letter detailing it, explaining exactly what the costs are, and <em>why</em> your parents can’t contribute. They may be able to help you if so. </p>
<p>If that’s not the situation, then I think you’re stuck.</p>