I missed a bunch of episodes, but now I'm all caught up. You're slowly starting to hit harder monsters.
As you noticed, you forgot to cube the class charm with a jewel when you first got it. You can fix this if you transfer the charm to a new lvl 1 necro and cube it with a jewel. Then return it back to your main Necro. That will open up one of the lvl 90 challenge skill and give you other juicy stats. (I think this still works?)
Btw, 99% people here live stream on Twitch instead of YouTube. If you enter your Twitch account on your profile
, your stream will appear on the index page of the forum, under the "Last Posts" module, when you start it. You might get a few more viewers that way, if you decide to do it. You can upload from Twitch to YouTube.
Wall of text (info and advice), take what you need: