In my opinion you dont need to be an elite player to enjoy and progress in this game. All you need to do is to find the synergy between the skills (not synergy from ultimate), that thing that make them complement each other and boosting or prolonged their effect (like Shadowy Disguise and Surprise Attack, or Whirling Blade and Power Extraction). More then that, as a Nightblade you need to examine first the odd of a battle, the class of yours enemy and create a strategy. It would never help to charge mindlessly in to battle, yelling and screaming war cry. Wait one moment and balance the things, if you think you cannot beat them (join them ) get over with, level your char or yours skills a bit and come back and kick their asses. If you are in EU server would like to join you and learn how amazing a Nightblade can be.

Little follow-up and I thank you all for the reply ..I have converted my whole character from tips on this forum .. and YES .. I should not complain about the veteran lvl .. for my "new" character now works the way I want it to work in ESO
So thank you to all who have made suggestions