SP500 ! The index falls and pulls the entire market with it

SP500 falls from the maximum value of the price - 4800 by almost 19%. Yesterday's trading session closes at its daily low, which suggests that the movement will continue. The price went into the range between 3981 and 3859, after the breakdown of the resistance of this range, I think that in the near future the price will be able to reach the support of 3859.
I expect the index to fall in a downtrend to support 3859

Sincerely, R. Linda!