workflow that uses script - Stumped

Hi, i have tried to get this to work but really struggling.  here is the situation

I have a work flow that searches for users, saves object properties, including first name, last name, extensionattribute3(this is in format of 7/15/2025 but i believe since extensionattribute3 is of type string that is what this will be)

I need a script that will look at each user found, convert the value in extensionattribute3 to date format, compare this to current date + 4 days.  

what i need to do is either via script directly or via using if statement after script if the value in extensionattribute3 that was converted to date is greater than or equal to current date + 4 days then set msexchnagehidefromaddresslist to True, else clear this so that the mail is not hidden.

I am really struggling with the script and getting it to work and how to access the saved object property value from the script etc.

Any help would be greatly appreciated.

I have done alot of research but i just get more confused.  i am using automation script that to test i am running manually on demand with the goal to be to schedule this to run every 45 min.  

in my workflow  have

search for users where extensionattribute3 is not empty

save object properties

run script

report so i can see attributes