All that can be done is to wait, unfortunately.
Assuming the IRS Where's My Refund portal at the IRS does not indicate you need to contact them, and that it has been more than 21 days after filing including the March 17th estimated date for deposit, you may want to reach out to the IRS.
However, it would be difficult this time of year to get an answer on the phone. For more contact resources, see IRS Let Us Help You.
