Step 1

HTML

0 - Year 1

CSS

0 - Year 1

Step 2

Javascript

0 - Year 1

Sass

0 - Year 1

Step 3

React

0 - Year 1

Step 4

Computer Science

0 - Year 1

Python

0 - Year 1

Step 5

Flask

0 - Year 1

MySQL

0 - Year 1

After this point simply follow the respective docs for the topics you wish to learn.