I've seen way worse than what we've seen past few hours in the market but hope everyone is ok.
If you lost money, let it be a lesson and keep your head up.
Evaluate everything and see what goes wrong and see where you need to improve.
These type of situation helps you to improve yourself a lot. These lessons will help you in long run.
There is no need to stress, Stress will only put you in a bad situation and damage your health.
Find out your mistakes, Learn from these and keep improving.