No, do not try and e-file your tax return, it will only cause more confusion in an already confused IRS environment.
The IRS is not processing paper tax returns at this time.
See this IRS website for information - https://www.irs.gov/newsroom/irs-operations-during-covid-19-mission-critical-functions-continue
The IRS is not currently able to process individual paper tax returns. If you already have filed via paper but it has not yet been processed, do not file a second tax return or write to the IRS to inquire about the status of your return or your Economic Impact Payment. Paper returns will be processed once processing centers are able to reopen.
If you decide that you want to return the stimulus check, see this IRS website (Question 54) - https://www.irs.gov/coronavirus/economic-impact-payment-information-center#more
