There is nothing you can do to speed up the processing of the 2019 return and until they complete the processing and approve the refund it will not be released. It is very possible you will file the 2020 return before the 2019 refund is in hand.
Try calling to check the status of your refund at the IRS website.
https://www.irs.gov/refunds
800-829-1040
First choose your language.
Then 2
Then 1
Then 3
Then 2
When asked for SSN do nothing it will ask twice
Then 2
Then 4
You should then be transferred to an agent, but there is likely to be a long wait.
If they can't assist you can try the Tax Advocate in your state. most are working remotely and have a backlog.
https://www.irs.gov/advocate/local-taxpayer-advocate
