After you file

After I verified my identity I have not spoken with an actual person at the IRS since. I am unable to use the WMR tool as it keeps saying my information is incorrect (possibly because I am trying to look up 2020 tax year information when they have already updated to 2021 tax year?). I have made multiple attempts to try and contact the IRS, a total of 632 attempts I made last week alone, however I cannot even get to the point in their automated system where I get put on hold. I work out of town M-F and have a very time-demanding job, I can't spend 3+ hours a day trying to not  even reach a real person, just getting put on hold is impossible. I really am at a loss as to what I can do, the Taxpayer Advocate Service is a joke with a longer waiting list than the IRS it seems. Are there any other tools I might be able to use when, at this point, it seems as though all hope is lost?