The stimulus payments were only issued in 2020 and 2021 and if you were claimed as a dependent on a tax return then you were not eligible for the stimulus.
Otherwise you will need to either file or amend the 2020 and 2021 tax returns for the Recovery Rebate Credits.
See this TurboTax support FAQ for amending a tax return - https://ttlc.intuit.com/turbotax-support/en-us/help-article/tax-return/amend-change-correct-return-a...
To complete and file a 2002 and/or a 2021 tax return using TurboTax you would need to purchase, download and install on a personal computer one of desktop editions for each tax year from this website - https://turbotax.intuit.com/personal-taxes/past-years-products/
A prior year tax return can only be printed and mailed, it cannot be e-filed using TurboTax. When mailing multiple tax years use a separate envelope for each year.
