The unique and amazing thing about webcomics is that you can just throw anything out into the world and see if it works, and if it doesn't, you can try again with absolutely no penalty. So maybe it's best to treat this like a Roguelike game.
If you were making a print comic, before being published, you'd have to go through so many people who would be like "Hmm, I don't know if we can sell this concept" or "I don't think this art style will work..." or "This is too rough looking to go to print" etc. So print comics are practically always very safe and very polished. The downside is... you can't just try a thing to see if it works, and you can't prove the publishers wrong by actually getting an audience for a comic they were sure nobody would read.
As a webcomic creator, you don't have all those people to tell you what your work should be to succeed before you make it, so you kind of have to learn what works and doesn't work as you go. Sure, you can, and should read books about comics (like Making Comics by Scott McCloud which EVERY comic creator should read) and look for what your favourite creators have to say about their process, or successful people on a platform can say about how they built their audience... but platforms and audiences are always evolving; there's always an experimental element and always a chance that something that breaks all the established rules of "how to make a successful webcomic" will rocket to stardom.
So you had a bad run. You launched a comic, nobody looked at it. Bummer! I've been there when I started out! My first comic was a terrible attempt to copy Megatokyo, which was my favourite webcomic at the time.
NOBODY READ THIS. In retrospect... I am thankful (oh my god, did I write my name in comic sans? I hate you, teenage me 
)
I made about five strips of this, then stopped because...er... nobody was interested. But I don't regret making this (okay, I do regret the comic sans) because it was the start of my webcomics journey. It taught me so much about what I'm good at, and from there, each comic I tried was a little more successful. I mean, I think my journey would have been a lot faster if I'd had access to the wealth of resources a creator has now, like amazing books, youtube channels, tutorials and easy access to communities with more experienced artists to ask questions (a few years later I'd join a UK based small press comics community, and it made such a big difference). But still, the point is, this comic bombed, but it wasn't the end. It was actually just the start.
So, maybe writing this comic up as a failure isn't a bad idea or maybe you want to try it a bit longer, but the important thing is to now do a post-mortem. WHY hasn't it performed?
Did you maybe not promote it enough? Did the cover, banner or blurb fail to grab attention from the crowd of other titles? Did the start of the story lack a strong hook? Did you fail to make the protagonist easy for the audience to be emotionally invested in? Write down notes on what you can improve here and then look for ways to improve those aspects.
For further guidance, I wrote a massive document on this exact subject with links to resources:
