Looking for a good blood mage leveling build

Got to late Act 2 Cruel on a monk. Was doing great damage but eating dirt every boss from oneshots even with points in energy shield nodes. Brother was playing sorc but didn't like how weak it was to me even after respeccing from fire to lightning, so we rerolled.

A friend linked me a poe2ninja lightning spear blood mage build to try. It felt great at first, but now in Act 3 normal it feels super weak, and I think it's cuz 1) the build is from a 98 with probably great gear and 2) it tells me nothing about rotation or what level range to get skills at, node paths to take first, etc.

Any good leveling guide out their for a blood mage that ultimately ends with lightning spear? I have been told that is the meta right now. What I am liking at least about the poe2ninja level 98 build is it had me take a lot of energy nodes, that with witch getting lots of energy shield from gear, stuff that would 1shot my monk is just stripping my energy shield at most but leaving me with full health. So ideally a campaign leveling build guide (that hopefully also explains an endgame build) would let me do damage and have room for error so I don't eat dirt for screwing up a mechanic.