I'm sorry, your situation sounds terrible, and this is hard on a lot of people. I truly feel for you and everyone impacted. Speaking from personal experience, not even STEM people are immune from the economic impacts of the pandemic.

1) Have you tried the IRS website to check the status of your payment? My status finally flipped from "GO F YOURSELF" to "Please give us your bank information"

https://www.irs.gov/coronavirus/get-my-payment

2) As your hours are cut, you may qualify for Unemployment from your state under modified rules from the CARES act, have you applied?