This script helps you count the number of bars which are constantly higher or lower than the previous ones.
I set the script to count from the first one, but only display the number from the third, in order to eliminate too much noise.
Note: I have loosened the criteria of HH and LL.
Let's take "higher high" as an example, I will count the number If the current bar's low is higher than the previous one's and its high is higher or equal to the previous one's , and vice versa.
If you prefer the strict definition of HH or LL, you can modify the code as you wish.