Other folks have already offered good insight about making sure to have a safety net and such, so I'll hop straight into the main topic.
One thing to keep in mind early on is that you will likely have to do a lot of your own legwork off the site to direct traffic to your comic.Without being featured on the front page, there's a rather limited visibility that you can reach by just posting to the site itself, and getting featured is ultimately outside a creator's control, so it's not a good factor to count on, necessarily. Take a moment to think about the target audience for your series, then where those people hang out online, and then ways you can get your comic in front of their eyes with tasteful promotion.
Maybe it's building up an Instagram or Twitter following, maybe it's making short-form tiktok videos, maybe it's making long-form youtube videos, maybe it's using appropriate reddit forums in a clever way, maybe it's live streaming while working on your comic, etc.
Finding a couple of effective marketing methods and platforms is ideal for variety
Other than that, the following two areas are also important.
First and foremost, always keep working hard to improve your content- both storytelling and art! While it's true that just having a good comic doesn't automatically guarantee results, it's also true that generally speaking a higher quality comic will more often than not outperform lower quality ones. This is a never ending journey as a content creator, though, so just keep working at it over time. Just be sure not to get complacent or stuck in comfort zones!
Lastly, and this might be a somewhat controversial opinion, but: I think it's important to approach comic making with a professional mindset if you want to do it professionally. This means on top of just having a high quality product that you also need to learn the market and find something that will sell. Also important is to not over-commit to your first, or even second or third comic, as the one that will "make it", necessarily. Most folks need to build up audience and skills over the course of several comics before they reach a point where they can put out consistent marketable work and have an audience base to help support them in the early phases. Doesn't mean that those first few projects should be half-assed (back to the previous point, always keep improving and go 110%!), but outside of extreme, stars aligning luck, the first comic probably won't be your first career or professional comic
Best of luck! I took a quick peek at your series and it looks like you're off to a great start! If you keep working at it over time, I bet you can make it