Hey there,
I've been on the server for just under 3 years now. Based on this, I would assume you are NA? I myself am NA and I have had those problems in the past, but this isn't the game to power-level. It's a time-consuming effort and it helps you see the game for what it is rather than rushing to the end and being lost. There's a lot to learn, and being new, you need that time, because there are seasoned players on this game that are still learning new tricks on an old game. I side with whomever else told you to rely on RvR, and Scenarios. I say this, because you do not want to solely rely on questing and PQs, and to hop into RvR for the first time "end-game" and have no RR (renown rank) to support your play-style. RR is very important in this game and can differentiate a r40rr20 Witch Elf from an r40rr60 Witch Elf.
As far as RvR, there's a lot of flow within maps, and you need to be cognoscente of when zones are captured and locked and follow when a warband is in a specific area. Most warbands do not appreciate afk players or rogue players that stray from the fight, and so if you follow any of these precautions, you might understand why you are being removed.
As far as Scenarios, there are peak hours for the server which in time you will come to understand as well. This server isn't solely revolved around NA, and if you're NA, playing this game in your free time can be somewhat yet not too far from difficult. There are many options to explore, and if you aren't getting RvR lakes or Scenario pop-ups, resort to questing, PQs, and farming mobs.
Do finally understand that with your post, you explain your sole difficulty with the game. This game does not tamper with many of the other players and it's understanding what was explained above to come to peace with how the game is based. I myself believe this game was purposed for RvR, playing one of the, if not the single-most important purpose of the game. If you find anguish in this or do not like that, I would suggest searching another game.
I hope this helps
