I was working for doordash for a time and am no working for a courier service as an independent contractor. Does turbotax give me everything I need for all taxes?

Yes you can enter all of of that self-employment income into the software.  You either need any desktop version of the software, or online Self-Employed in order to prepare the schedule C for your business expenses.  Depending on how much income you had you might be able to use Free File--which can also support preparing schedule C.

If you qualify to use it, there is another full-featured free version of the software:

Try Free File: 

You qualify if your income was $36,000 or less, or $69,000 or less if active duty military, or if you qualify for Earned Income Credit

https://ttlc.intuit.com/questions/1900583-what-is-turbotax-free-file-program

• https://ttlc.intuit.com/questions/2026912-how-do-i-switch-to-turbotax-free-file-program

Note:  If you do not qualify to use Free File then you will have to upgrade to Deluxe or higher in the paid versions of the software.   

Online Deluxe $60  State software $50

Or—-Use this IRS site for other ways to file for free

https://apps.irs.gov/app/freeFile/