Yes you have to report all your income even if you don't get a tax form for it. Even $1 of bank interest. Were you an employee? They should send you a W2 for it. Or if you were an independent contractor or self employed they have to give you a 1099Misc if they pay you over $600.
i assume you got paid cash and no taxes taken out?
How to enter income from Self Employment
https://ttlc.intuit.com/community/self-employed/help/how-do-i-report-income-from-self-employment/00/...
