These are excellent choices!
I know of a few books, but I can’t recommend them as they all have errors, but IMHO you want to get started with Kabbalistic divine/angelic names and Reiki immediately.
The spelling and Kabbalistic alignment in Archangels of Magick by Damon Brand is atrocious, but the beings are amazing, and God gives more leeway if you get a name wrong than the bank. Reiki you practice. I don’t care about lineage or symbols or who said what. Just learn the absolute basics, open your light, let it out, and it’ll work better every time just like a muscle. Someone who has done “light healing” every day for a month will do better Reiki that a Reiki Master of 30 years who has not done Reiki since they were attuned.
The Kabbalistic names have their own vibration and you do not need to understand what you are doing to make the will of God manifest in the world. (Which, as the Creator and all that, this is good and life-affirming.)
Reiki will teach you energy manipulation. But you have to be DOING the energy manipulation, which you should practice constantly. I literally taught myself most of the techniques, including the ones I use for my primary Reiki work, so just find some energy exercises that work for you.
Practice chopping wood and carrying water in a way that is in alignment with your divine purpose, so when you are enlightened, you are already on the path.
Post-enlightenment, it is very much chop wood, carry water, and my cats tell me these bowls aren’t going to fill themselves. And the second job is just making sure you stay enlightened, and don’t fall too far too fast.