Combo fields etc...
Combo fields don’t directly improve your damage as ele for the most part (unless you try to use earth projectiles with them, which I don’t suggest).
The biggest thing is to blast finish your fire fields to stack AOE might, which indirectly does damage… and to blast finish water fields to heal your self and allies. Getting arcane wave will give you access to an easy blast finisher. The other one you have at your level is earthquake. At 60 you can get evasive arcana which lets you spam blasts.
Getting might stacks will have a very noticeable effect. In explorables I run staff and use evasive arcana to blast finish lavafont over and over. This can put 20+ might stacks on the party fairly easily. Out in the world farming I use daggers, and roll backwards after a fiery rush to blast it for might.
For water, well, you don’t die, so you notice it by that.
I don’t feel that self comboing our other fields (chill and lightning) is worth it. Other classes that spam projectiles(gun thief for example) can make great use of both of those when we provide them however