You might not be able to recover deleted data. If you used TurboTax Online and used the Clear and Start Over feature, you won't be able to recover it. If you used the Desktop version it depends on how you saved it in the first place.
See this response from a previous thread by @DoninGA
https://ttlc.intuit.com/community/taxes/discussion/i-deleted-my-return-by-mistake-how-do-i-retrieve-...
