look up money supply - m0, m1, m2, m3, m4, velocity of money
figure out how federal reserve "printing money" (what does that even mean) affects the different buckets
look up difference between how reserve requirements affect money supply vs "helicopter money"
look up the federal reserve mandate to target 2% inflation while keeping unemployment as low as possible
figure out how the federal reserve balance sheet works (eg what happens if debt the federal reserve owns defaults)
and you'll be much closer to understanding our current economic situation than you were in high school ;)