First- if you know there is a problem with the kickstand, fix that before you start looking other places.
I don't know if that's your problem, but even before I read what you wrote, from the title I was like "i bet it's a kickstand thing".
So yeah- fix the kickstand and see what that does.
As for the grinding, check your clutch cable adjustment. Are you pulling in the clutch while shifting, or shifting without the clutch?
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