After I failed a few projects I realized I HAVE to learn how to write. The stories I made were so aimless that I didn't know what comes next and I can't draw anything at all coz I was so lost. So i watched a few vids about writing on youtube, read some stuff and taught myself how to write a story. I ditched my old method of scripting and learned the script formating which was very helpful. I find that drawing and planning a webtoon is easier after learning all of that. If any of you guys are using or learning script formatting , I recommend Trelby. It's a free program that automatically formats as you type.
Sorry, this isn't really a tip to help you get away with minimal writing because that's not my style. You can't really neglect the writing part of the WT if you want to make good content.
I think if you really want to minimize writing , you could choose to make gag-a-day comic instead? Or maybe pick a genre that requires less of the skill you lack? Like if you can't write plot heavy stories then go for slice of life