Guild Wars 2

I’m new to the Necro profession, Any advice as to what kind of weapons and stuff I should be using? How should I use my skills together?

Really depend what kind of necro you want?

Bunker? Aborsb a lot of damage
Direct Damage? Use direct damage.
Condition? Use condition to do damage over time.
Hybrid?

There are a lot more option.

For new player, a condimancer is effective. Use staff and scepter + dagger as weapons, and use epidemic as utility.