It's unlikely that there is anything you can do to reduce your 2019 tax liability now. If it has been less than 60 days since the distribution from the 401(k) you could roll the money over to a traditional IRA to continue to defer the taxes, but beyond that deadline the taxable amount of the distribution will be included in taxable income and there is essentially nothing you can do.
Because of your age in you are not permitted to contribute to a traditional IRA for 2019.
