Fully enjoy that website! So awesome!
Try googling hebrew for christians. They got good resources for teaching alephabet.
But... I do see what happened here. Ok. So you're studying letters -turned into numbers etc. Get firm hand on letters though, otherwise it'll get confusing. Another book you may like is gates of light.
I'll give ya follow so can read more, now knowing where youre at. Keep searching and learning! If you hace questions just give me a tag.
There are 72 names for G-d. Even יי (yod yod) is one. Namely it depends on what facet your addressing. Example: Adonai - addressed for healing
Shaddai (breast) for nourishment
Elohim (addressing both masculine/feminine)
Etc.
Make sense?
Edit: you may like Samuel Aun Woer (strength and light) he is a non- jew, but explains everything you've been writing about. There are different ways to "ascend." Anyway, it was nice to meet you ... today is turning out to be a good day. :)