Guild Wars 2

I play 0/0/10/30/30 in WvW with a small team and I have tonnes of fun. Yes we aren’t quite as powerful pre EA fix but protection/power stacking, area swiftness, great heals and cc makes staff ele very viable as support. As long as your team mates have a fairly good understanding of the game and its mechanics, support is a rewarding role to play.
In short, make sure your team knows what field combos do what and what finishers they should be using through them, focus on ccing the right opponent at the right time and keep buffs on your allies instead of trying to deal damage.

The problem is not underwater combat, its that you are playing an Elementalist. Arenanet doesn’t want you to play this class, you must re-roll Warrior immediately. As soon a you do you’ll notice that underwater combat (and any other aspect of the game) becomes far easier and you will get a lot more enjoyment out of the game.