I love your article, you really resumed very important aspects to have in mind when you are starting out this journey.
I would like to add some more like for example:
A simple solution it's better than a clever one that anybody else could not understand.
Before start coding, take time to understand the problem you are trying to solve and how to fix it, many of us, do not hesitate to start coding even before we know what the client really needs.
Find a mentor or someone who can motivates your to keep moving forward.