ok so I just checked out your comic website and patreon just to confirm something,
full disclosure I'm not and expert but I think you need to work on your website and patreon page more than you comic
simple problems to fix:
so this is your website design in a nutshell and I'll be honest, in my opinion it ain't good :C, the comic page is too small and the ads are a bit in the way for the reader to enjoy, also their is too much useless white space between the page,ads and menu
so let's fix this page just a bit
people come for your comic first and foremost so let's make that the central focus of it by making it a bit bigger and more in the middle, also let's get rid of all that white space between the page elements so you have more space for the page and making the website feel more of a whole. a lot more pleasant to read.
also tip make your patreon banner/ad bigger it should be big enough to be able to see without having to even look for it, which I had to do,
now for your patreon page:
first let's say I'm a spectator and I find your patreon page:
I'll break my reaction per paragraphs:
introduction "great we need to know who you are, also good on the image link and you told me what I get that's a great start"
talking about your comic "ok this seems interesting"
everything else is just white noise seriously why the what's patreon piece? most people on patreon already know how to use patreon so this is just redundant
now the reward page, the first are good but after that it all falls down, a wallpaper for 2$? that's too cheep, people think that they get what they pay for so a 2$ illustration, that tells me one of 2 things, either it will be of low quality or you don't know how to price your art
just for perspective a comic cover, not even a wallpaper but a cover page, goe from 25-40$ on commissions.
here's a webpage for help on pricing yourself https://fairpagerates.com/
other that that the page is great
so no you don't suck at making comics you just need a bit of polish on other aspects,
hope it helps C: