Turbotax won't help with the calculations. In fact Turbotax hasn't been updated with the cares act info you (4/1/2021). They still reference the obsolete TCJA.
The IRS has info on how to calculate your NOL here: https://www.irs.gov/publications/p536
Ultimately everyone recommends going to a tax accountant. If you can find one that wants to take on a new client and deal with NOL (I've tried 3 so far with zero luck).
