Coming from this meta question, as you can guess, I am actually question banned.
I have read plenty of meta topics about being question banned and the only way out seems to be "Improve your questions"... Fine, I went through all my actual questions, and besides deleting a seemingly useless question that was about to be deleted automatically and a few details on other questions, I don't really think there's a lot for me to do to make my questions better (which is surely wrong since I'm question banned).
I suspect that my deleted questions (1, 2, 3, 4, 5 (undeleted and edited), 6, 7, 8, 9 sorted by most downvotes) are those that weigh the most in my ban and hence are the ones to edit, but as far as I can remember, me deleting these questions was most of the time because, according to comments and/or downvotes, they were not good, and it was simply me acknowledging that they aren't meant to stay on Stack Overflow, even after being edited.
Are those questions going to be a burden forever or is there anything I can do about it? What can I do to make my questions better in order to ask my new question (and not get banned again since I'm not considered a good asker)?