Go to the financial aid office at your institution. They will have you fill out a FAFSA (I'm not sure what that stands for, but I can make up a few things...Federal Aid something or other). It's lengthy and they do ask about bank accounts, savings, childcare expenses, income, etc. That is sent to the Fed. govt. who will send your college a report advising them what you qualify for. You may qualify for a PELL grant, which you do not have to pay back. Or, if you don't qualify for that, you may qualify for unsubsidized or subsidized Federal Stafford loans or Perkins loans. These you have to pay back. I believe the unsubsidesed and Perkins loans interest and payback is deferred until 6 months after you graduate. Also, you should ask your financial aid office about scholarships
and grants and apply for those. It all requires a lot of paperwork, but once you're in the system, it gets easier. Just remember, what you borrow you'll have to pay back.
Best of luck to you,