Please try not to be too hard on yourself.
Remember this egg had 0 chance without your help to start with.
The initial trauma it went through may have caused issues as well.
Sometimes no matter what we do it doesn't work out.
At this point a hands off approach of just watching is best.
I hope this little one proves us all wrong, but regardless you did the best you could to give it a chance it didn't have without you.
My sentiments excatly. Please keep us updated.