Rouble Resuming 'Learn SQL by Building a Student Database: Part 2' on Docker

Why can’t I continue where I left off on the Learn SQL by Building a Student Database: Part 2 using Docker ?
When I want to reopen the tutorial, all my progress is reset to 0% and can’t find the files I have been working on.
I followed the guidelines provided here: Relational Database Course – How to Learn SQL in VSCode Using Docker and freeCodeCamp
I have unfortunately cloned multiple rdb-alpha repositories and some of my previous containers got removed for some reason. I am beginner so if anyone could tell me what I am doing wrong.