If you're brand new to EQ, there's about a thousand tips and tricks about your class and the game as a whole that will help you along the way.
1. Number 1 most important thing is to find some people in game you like to chat with and play with. A guild is great, but a friend's list is nice too. Unless you're really, really a loner, having pals to talk to and get help from and play with and stuff is the best tip you can have in EQ. And even then... I'm quite a loner in this game, but I'd still get bored out of my mind without a handful of friends I like to chat with in tells while I'm out soloing.
2. Go to the p99 wiki and read a few of the guides/articles aimed at new players and at necromancers.
https://wiki.project1999.com/Necromancer
https://wiki.project1999.com/Players:Adventure
https://wiki.project1999.com/Game_Mechanics