[BLUEPRINT]
A Blueprint would be a mental image, but it doesn’t necessarily have to be a literal image in your mind! Sometimes art comes about as a collection of ideas in your head that you want to explore in a piece. E.g. A happy and calming forest-y piece.

The key here is knowing just what the hell you want to draw, because if you go in having no idea what you even want to get out will obviously not lead to a very interesting piece, even if you have technical skill.

So how do you get better at blueprints? In my opinion, through looking at other art. Be active in artistic circles, follow fellow artists on social media, and admire and study the things you like about their art. Don’t just try to pull pieces out of the aether, essentially.

[MATERIAL]
The material is essentially your medium and tools of the trade, so the materials for drawing in a sketchbook would be the sketchbook itself and the pencil. For digital art, it’d be the drawing tablet and the program you’re using.

Why am I putting a pencil as a material and not as a tool? It’s cuz my theory essentially places the “materials” category as objects for you to do your thing with that require money to get. Limited money means this aspect of your work will always be limited too, be it to a cheaper tablet, or a cheaper pencil scribbling on cheaper paper.

For super professional artists that matters a lot (especially in traditional art) but if you’re just starting out, you’d be surprised at how far cheap materials can get you, and equally surprised at just how little you’ll be getting out of super expensive stuff. Being rich helps, but it doesn't make you automatically good at anything

[TOOLS]
Now the things in this category might be strange, but it essentially encompasses the means by which you manipulate your materials, aka, your hands, and to a lesser extent, your eyes. You’ll notice as a novice artist that you have trouble drawing those fancy stable lines that other artists can just so easily make, and it seems those professional artists can just pick the right colors like it’s no effort at all. And that’s cuz they have something called muscle memory.
Luckily you’ll get that as you go just because that’s how our brain works. But added to that, it’s very very important to treat drawing like exercise, because it is. Drawing involves tons of complex wrist, finger and arm movements, and thus you should look up drawing warmups, which seem silly but it really makes a world of difference to dedicate some 5 minutes or so to do these exercises. You’ll notice that without these, you’re far more sluggish and clunkier to draw at first, not to mention risk injuring yourself.
But there’s another, just as important point about your tools, and something I knew in my brain but couldn’t properly express when I told you to draw on paper at first: To practice, it’s vital to have as little separation between your brain and your drawing as possible. If we think about the logic of how digital drawing happens as a set of steps, it’s more or less like this:

Brain sends input > Your hands control the pen > The tablet translates your movement to a digital program > There is a slight delay while your trace is rendered on the computer alongside stabilizers and brush settings and the like > The line appears on the screen
Meanwhile, for traditional drawing:
Brain sends input > Your hands control the pencil > The drawing is inscribed instantly on the paper.

That separation may seem like small potatoes, but it makes a world of difference, especially the stabilizer thing, bc if you only draw with stabilizer cranked up the wazoo, then you’ll never be able to develop your linework, and you’ll lose tons of nuance due to the strong stabilizer.
If you must practice your art thru digital, then let your lines be wonky! Click undo less! Download a textured line brush! Oh, and limit your color palette. It’ll help you so so much to not get overwhelmed by all the color options!

Above all though, have fun with the process! Art as a whole – creating – is one of the most fulfilling pursuits in the world. It is my life’s purpose to create, and to encourage and inspire others to create as well.

You will never start out being good at anything, but something I noticed is that you’ll always have one or more strengths. Look for those strengths, whether it be a sense of color, framing, perspective, scale, volume, or just a firm grip on your pen. This is true for any kind of art, including the ones you might think you’re irreparably bad at. You just need to hone your strengths, make your art about them, and allow the other skills to develop naturally.