Angelica Cabrera doesn't have insurance. There was a time when she thought she didn't need it, but now that she's trying to pay for school and rent on her own, she can't risk getting sick. As the March 31 deadline approaches for enrollment in Obamacare, young adults like Cabrera are considered a prime target. Sometimes called "young invincibles," these adults between the ages of 18 and 34 supposedly see themselves as invulnerable and health insurance as unnecessary. But like Cabrera, many don't view themselves as invincible at all – just strapped for cash and unsure of their options.