Ever since I started cleaning up unfinished campaigns on my cleric a few months ago, I feel that my attitude to Neverwinter has changed in a good way. Before that, the way I played the game was much more limited: I would tackle every new campaign with my pet tank for a while, but often we wouldn't finish it, and then I never dared to go back on my own. I was somewhat afraid of pugging as well, and my solo play was strictly limited to early/easy content such as running cult dragons or Sharandar dailies.
After my cleric's recent success at finishing off old campaigns, I felt encouraged to actually push for some more progress on my alts as well - which has been nice in so far as it means that I've got some of them working on different content now instead of just running the lot of them through the same weekly quests all the time.
Repeatedly besting Tiamat also increased my confidence in pugging. I'm still somewhat uncomfortable knowing that my damage contribution is never very high, but as long as I know basic tactics for the content in question I'm willing to cross my fingers and risk it while hoping for a friendly carry. It's worked out in my favour more often than not.
Together, those things have really worked to increase my engagement with the game.