Run multiple Pre-request scripts sequentially in postman

I have question regarding pre-request script in postman collection. I have created a collection consisting of around 80-100 requests. And I have categorized them in 5 separate folders. Each folder has its own functionality. I want the multiple pre-request scripts to be run sequentially for the specific request. What is currently happening is the number of scripts I have in one post-script is running but not in sequence, It runs randomly or not sure how. I am new to postman and this is my first post so please let me know if any details are required. I would appreciate any help.