N/W PvP question

Hey guys. I am a lvl 18 N/W and I joined a new guild and there into guild wars. I feel kind of low in going into the wars cause I doubt myself and my powers. If any of you have any good combinations of skills that i should do? I have my attributes to Blood, Death, and Swordsmanship. But my favorite necro skill is plague touch. I would have to say since i got that skill I have only died a few times and that was when i was outnumbered and the only one in my party alive.

I have a N/W myself, he is very good (although sometimes i have problems with warriors :/), anyway I have

1)Vampiric Gaze
2)Vampiric Touch
3)Life Siphon
4)Shadow Strike
5)Pararsic bond
6)Sever artery
7)Gash
8)Rez sig

Basic strategy i use is cast Shadow Strike, then Life Siphon, Pararsic Bond, and Vampiric gaze....when i get close i start slashing using Sever artery, gash and vampiric touch....if they run away rinse and repeat hope it helps