For the moment, I cannot find anything else to suggest to prevent, adapt or fix your Mary Sue. Just remember that there is SCIENCE behind appearance, conflict is good for the plot, not everyone finds your character beloved, and if the world works for the character, go for it. That one is probably the most important of all.
In the meantime, I'm going to polish up these blog posts, bring them together into a .pdf with some supplementary pages, stuff like worksheets to help you determine if your character is, in fact, a Mary Sue, and links to places where you can check the SCIENCE of appearance.
I'll post the download link on the blog, and it'll be available on both of my websites as well, for free.
I'm not sure where I'll go from here, with NaNoWriMo looming near, as well as the Election Season in full swing at my day job. (American politics...season ends Nov. 6). All I know is, I intend to keep working on this blog. It's rather fun, don't you know?