u/Fun-Hovercraft-528

Hi, i started playing Diablo 4 days ago as a Necromancer and i'm starting to find it hard to do pretty much everything, i'm at Tier 6 right now, i have no idea where to look for a builds (videos, webs, etc) i tried to find something on google but i'm confused on why most of the builds i could find dont mark the abilities that they use as 15/15 as in the image i attached.

Any help is appreciated, have a good day whenever u read this post.