Unemployed people are hit the hardest but the challenges of medical insurance in the days since Obamacare took effect. The Affordable Care Act requires you to have a minimum income (about $17,500) and a maximum income (about $47,500) in order to qualify for any subsidy!
Medicaid
If your state expanded Medicaid, you may qualify for Medicaid based on your income, family status, disability, or other factors.
Other Options
The ACA marketplace is one option, the other is Christian Health Sharing Plans.