Is your art good? It's OK. You clearly need more practice. Which is fine. Everyone has to start somewhere. Nobody's going to be a well-known, beloved, highly-influential artist right off the bat. The first thing you need to do is stop comparing yourself to them. It's like me comparing my stories to J.D. Salinger or my poems to Emily Dickinson. The reason those people ended up being as well-known and revered as they are is that they spent years-decades-refining their skill...and even then it mostly comes down to luck. The fact is a lot of times people end up having a large audience because they happen to toss something out there that connects with people without even trying.

It's just the way it goes sometimes.

So, keep drawing, keep trying to learn how to draw better, and don't give up on yourself because you should always want to improve yourself plus it can be a lot of fun. Of course, it's a lot of frustration, angst, and misery sometimes...but at least in the case of art you almost always gain a net positive result in the end, even if it's only an incremental improvement in your skills.

I will suggest that learning the fundamentals is a good place to start if you're wanting to get better. As annoying as practicing them can be it can make a huge difference a lot quicker than you expect. I suggest checking out these free resources https://jaejohns.com/free-books-on-drawing/ They're all excellent.

Whatever you do-whether you decide to keep drawing or not-don't give up on yourself. You're worth the time and effort you put into being kinder to you. :)

Honestly, I've only just started myself, but I have learned that all artist, and anyone else who's just starting out doing artwork in-general have a natural tendency to think their work isn't good when they first finish a design, or even a basic sketch.

No one figures out their style out right, it's a process that changes over time as you go.

You're off to a good start, just don't give up— work at your own pace. Also, practicing by repeatedly drawing basic shapes is a big.

Ever tried digitizing your art?