25 Tips for New Developers: Advice from a (Mostly) Self-Taught Software Engineer

The Levels of Learning

Bloom's Taxonomy provides an awesome framework for assessing your knowledge and expertise on a topic. First is factual knowledge, then conceptual, then procedural, and finally metacognitive.
Factual knowledge would be something like "CSS uses curly braces and text", conceptual knowledge would be "CSS is used to style web pages, you use selectors to choose which element or groups of elements to style", procedural knowledge would be the ability to style a web page with CSS, finally metacognitive would be knowing your strong points and weaknesses with CSS and being able to fit it into the bigger picture of web development.
Adding reflections into your learning process will help you progress within Bloom's taxonomy -- fit your new knowledge into context of all your learning and self-assess your progress and topics you're unclear on or haven't learned yet.

Managing Imposter Syndrome

Have you ever felt like you just aren’t smart enough or like you’re incapable of being a programmer? Have you ever felt like an imposter and that someone’s going to figure out you aren’t actually qualified to do what you do? You may be struggling with imposter syndrome.

What is Imposter Syndrome

Imposter syndrome is the feeling of "inadequacy that persists despite evident success." People struggling with imposter syndrome often minimize their accomplishments and feel a lot of self-doubts even when they are objectively are good at what they do.
Almost all developers struggle with imposter syndrome at some point in their careers, especially those who are members of underrepresented groups in tech. It’s natural with the amount there is to learn, the diverse educational experience of people in the field, and the ever-evolving landscape of programming. Knowing that imposter syndrome is widespread is part of the battle -- you aren’t alone in this, and it doesn’t mean you are actually unqualified.
I'm years into my programming career, have held multiple senior titles, and I still worry that I know way less than everyone else. To be honest, being visible on social media exacerbates that feeling of fraudulence. So does moving into a new role or receiving new opportunities.