Retirement tax questions

Thank you so much for your detailed explanation!

I am looking at the form 8889 part III on turbotax.

Line 18 originally had "0" but didn't seem to add up so I manually input 3300 (excess from 2021 due to failing testing period). Is this ok?

And my Schedule 1 Line 8f comes out to be $5125 (which seems right since $3300 and $1825). $330 (10% additional tax) is shown on Schedule 2 Line 17d.