happy to help you resolve any writing stumbling blocks and wrote up a resource thread that can be read here as well for beginner writers and you can ask questions in that other forum thread too!
it's really good to get into the practice of finishing projects even if you "think they're shitty" bc they help you measure growth, ones that you see to the end that you can look back on as chapters in your creative timeline. nothing helps develop as a writer and a dev more than finishing smth.
lots of ppl "get stuck/discouraged" in the middle and never complete anything, so completing smth at all is an incredible accomplishment and skill of its own!
(it doesn't rly matter if one half of a project has stupendous writing bc no one can rly experience the whole thing until it's done and released.)
as far as being confident in writing goes, the emphasis should be on just getting it done no matter if u end up feeling like it's bad writing. maybe so, but you can look at in the future and use it as a goalpost to watch yourself grow!