I don't know if you're familiar with the series One Punch Man or not but the creator of that anime and manga started on a small web comic platform and his art was not high quality at all. His success on the platform came entirely from his story telling. A quick Google search said he started on Nitosha.net so maybe you could look into that. If you really wanted to pursue manga you don't need the art talent, if you make a good story the rest just might work out. Hope you can get your stories published op!