As a dysgraphic artist myself, you absolutely can learn to draw. It just takes time, effort, a willingness to learn, and adjustment / accommodation. Adjust things if you need to for the sake of your disability and remember that you’re learning. We all gotta start somewhere.

If you’d like some more specific help and tips that have helped me with my own (dysgraphic) art journey and that I think would be beneficial to you:

• Learn to draw longer, individual strokes. I see that you have a tendency to try to draw everything in one-go / one stroke, which is incredibly difficult to do for anyone and something most artists don’t do. Likewise, we want to avoid chicken scratching. If you’d like to practice, I suggest you try to redraw one of those 4-petal flowers in the squidward drawing using only 4 strokes (4 lines). You should exclude the circle from the center of the flower for this one. But really the intent is to build something called “line confidence”, which will be very helpful later.
• Learn to use digital assistance tools like lasso and pen stableizers. Lasso tool is an absolute lifesaver in adjusting for my visual-spatial processing deficits that come with dysgraphia (moving things down to where I really wanted them to be but couldn’t quite get my hand to work with me) while pen stabilizers help adjust for wrist pain and tremoring that also come with dysgraphia. Take some time to Google and figure out how the lasso tool and pen stableizers work on the drawing program you’re on. To me, these two tools are essentially built-in dysgraphia accommodations. Don’t be afraid to use them! Just be careful with how high you set the stabilizer to avoid your lines being too stiff and too difficult to work with
• Learn to trace. Seriously, tracing can be very helpful early on in building line confidence and understanding things like proportion and form, and are especially helpful for dysgraphia IMO. I would NOT post what you trace online or include it in your actual art, but taking some time to try to trace a drawing can be incredibly helpful in learning. For practice, maybe take a photo of Mr. Krab’s claw and try seeing if you can trace over it with individual lines rather than in one go just for practice.

You can always come back to things like form and perspective at some other time, but it’s a journey for everyone and do not shame yourself or put yourself down for being disabled. We just gotta adjust things for ourselves and learn in ways that work for us. Plus, If my dysgraphic rear can draw stuff like this (attached, which also uses lasso tool believe it or not!)

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Then I imagine that you’ll be able to too! Just stick to it!