If you want to file or need to file old returns you can't use Turbo Tax. Turbo Tax only goes back 3 years. So either go to a local tax place or accountant or you can get the IRS blank forms and fill them out by hand for free. Get the IRS blank forms here,
https://www.irs.gov/prior-year-forms-and-instructions
To file your income you probably would need to file it as self employment income and you would owe Self Employment tax on it. Then you will get Social Security credit for it for when you retire.
