1st：Don't panic
2nd：Go thru portfolio（asset allocation especially emergency fund saving always enough）
3rd：Invest more(buy in the dip)
4th：Invest more time in reading instead of sitting in front of stock chart.
My conclusion：just stand there and do nothing （Keep investing）.
Invest safe！

Firstly, set investment goal.
Secondly,research or choose the broker which suite the best for you or can offer lowest cost (Expecting fractional share but till now yet introduce by MooMoo but by competitor Syfe. )
Thirdly, I read, watch and learn as much as I can especially on asset allocation.
Only then I know and confidence what am I doing or invested in.
Finally, keep DDA and continue learning. Stop watching market especially during recession ...