Did you complete step 2 yet ?

The HSA is handled in 3 sections of the TT program:

First the contribution:

https://ttlc.intuit.com/questions/2766470-where-do-i-enter-my-hsa-contribution

https://ttlc.intuit.com/questions/2898445-how-do-i-fill-out-the-box-12-information-from-my-w-2

Next the limitations screen to confirm you are eligible to make the contributions:

https://ttlc.intuit.com/questions/2671344-where-do-i-enter-a-1099-sa

https://ttlc.intuit.com/questions/2899169-why-am-i-showing-an-excess-hsa-contribution

And last any distribution:

https://ttlc.intuit.com/questions/2899105-why-is-my-hsa-distribution-taxable