Will I have to pay alot of taxes and will I get anything back?

You not only can, you are legally required to report all that income, whether you have receipts or not. You were required to keep records of your income and expenses. Doesn't matter that you weren't incorporated, you aren't required to be, so no there's no penalty for not incorporating. You don't submit copies of your receipts, but keep them in case the IRS asks to see them.