Thanks for the update!
I hope you ok after the accident, sad you got a scar now on top of your head, hope it's not much visible after it's heal completely.
As @Berba11 said, you need to stop buzzing your hair and let it grow for at-least six months.
At the moment hair doesn't look great but you still have five more months so let's be hopeful.
Are you in touch with Dr.Sethi?
Best wishes!