You need to be kind to yourself.
We've all been there, with launching a comic, hoping everyone's going to love it, feeling like this is the one, this one's gonna go places, and then seeing the numbers and going "...Oh... Oh no... is... is my comic actually bad? Am I just wasting my time?"
I had to get over the fact that Errant, while it's a side earner, isn't a massive hit of a comic. It's got a small, dedicated readership, but it's probably never going to have the sort of mass appeal where making it is my job... and that can suck to think about, because ah man... I love making Errant, I really do think it's my best work. I still remember the time I asked some people with a big Tapas following about it, and somebody was like "Ah, no, yeah that type of thing isn't fashionable, it's probably not going to get a big audience Tapas" my vision blurred for a second and I felt like I was going to faint or throw up. It was that hard a thing to hear after all the work I put in.
...But I chose to continue anyway and to see what I could do with a comic like this. It's made me some money, it gets me a bit on the side on Patreon, and the kickstarter went okay so... even if it's not going to get a Netflix series any time soon, or pay my rent... you know, it's okay!
No comic is ever a waste of time. Every comic you make will teach you something, and every comic, as part of your portfolio, has the potential to lead to bigger things.
You have a pretty good looking comic, and you've gained over a hundred subs and a thousand likes. That's a solid start.
Consider doing a review of your progress so far. Sit down and write on some notes or paper, or in a document a list of things that you really like about your comic and feel proud of, things that went down well with the audience or that people commented on, and then things you feel like you could improve on.
If you're feeling up for it, you could ask for reviews on the forums or discord (but I know this can be scary, so no pressure!).
Then you'll have a better overview of where to go from here, and what might be involved in making a comic to build a bigger audience and making money, so you can decide if that's what you want to aim at, or if you want to just do comics for fun, or try something else for a while.
It might be that all you really need is a little holiday for personal development. Just some time to read some art and comics books, try some different drawing techniques and to brainstorm fresh stories or approaches to promotion.