Does Factory Reset reset Xposed Modifications, especially on Note 3 SM-N900 Exynos? or I need other steps to RESTORE Xposed and everything back to like I first receive it without the need to Flash with Odin. Because I either hard or softbricked my device using it! I am scared of it now. I rooted using Kingo Android ROOT for further info.. :) I want to reset because my device kinda laggy and I can not disable some Device Admin.. So, it is kinda messed up.. I want to start over with no Odin at all?
Xposed will survive, and your root should as well. But you'll need to reinstall the Xposed installer app and any xposed modules you had installed before you factory reset.

EDIT: So, to clarify, xposed modifies /system/bin/app_process to "hook" in to android. This modification is not touched by a factory reset. Nor is the su binary. However, the Xposed installer app (which is responsible for the upgrading of the app_process modifications), and any xposed modules will be cleared.