Guild Wars 2

Hello folks, i recently started to play gw2 and i created a sylvari mesmer. After followed several guide and video i choosed to go greatsword/sword+pistol-sword with traits 20/20/0/0/30. Im actually lvl 17 and i would to know what lvl first in my trits lane. Are 100power from dominion worth (in meaning of dmg at this lvl)? or i should start with 10 point in dueling?
Thanks.

either start with
0/5/0/0/0
or
10/0/0/0/0

but remember that you get trait resets at lvl40 and lvl 60. For leveling purposes, you can also put 5 points into chaos, it’s pretty effective at the beginning.

At lvl40 go
10/20/0/0/0