On your 2019 tax return, enter the your $6,000 traditional IRA contribution under Deductions & Credits -> Retirement and Investments -> Traditional and Roth IRA Contributions.
Regarding your 2020 tax return, yes, you'll enter your $6,000 contribution for 2020. Regarding the conversions in 2020, you can convert whatever amount is in your traditional IRA, including the $0.94 of interest, so your conversions in 2020 might total $12,000.94. That will round to $12,001 in TurboTax and the extra $1 will be includible in taxable income (probably with that $1 causing no change in your tax liability).
