You have so much time to learn new skills. So much time. My drawings were still absolutely terrible three years after I started trying to learn as well, it takes a long, long time. By saying you'll never improve, you're only creating a self-fulfilling prophesy. I have a friend in his mid 30's who only started learning how to draw a few years ago, also in order to create a comic, and his figures and perspective are only just now starting to come along nicely. He's still only working with pencil, and has a while yet to go before he can actually transition to digital and begin his comic in earnest, but he's on the right path. Again. Mid 30's.
I don't know what this society has done to convince 17 year olds they're too old to learn new skills, but wow. No dude. You're so young.
Art takes many years to learn. Art takes a long time to create, which is why you're having trouble finding an artist to work for free.
The only way to improve with art is to just do it, draw heaps and heaps, and accept that for the first few years, your drawings will probably be terrible. Enjoy making them anyway, and appreciate the improvements as they come.
If it's not just that you're not good at drawing yet, and it's more that you hate drawing, then there are other ways to get a script into the world. (You stated above you hate novels.) You can structure it like a play and upload it to the novel section. You could look for voice actors to turn it into a radio play on YouTube. Or, you could just hold onto it, refine it over the years, and see if a comic publisher will buy the rights from you. (In which case, they pay for the artist.)
But seriously, the best way to get a comic created is to learn how to draw it yourself. Accept that will take many years, and enjoy the journey.