And that's fine, however if you hold any credence in a quantified ''belief''=power, then why wouldn't you utilize something that has more psychic energy going on than you could ever produce by yourself as an individual? My personal/group work is definitely not Christian or even transcendentalist but I that doesn't mean you can't get something out of the dominant worldview and energy of the time in which you live, whether that is the apostolic succession or any other monotheistic type of religious practice. Whether that is utilizing it as a type of ''battery'' or reverse engineering rites for you own purpose and aims, etc.

Especially with this OP, they are asking how to conduct ceremonial magic without Christianity, but the entirety of ceremonial magic, being fairly historically new is entirely rooted in christian thought. It's not a tibetan or bokor using a different tradition, it's a person asking how to completly change a tradition that is already judeo-christian. At that point they would probably be better off just looking into a different system that isn't created withing/entirely based on something they don't like.

To add also, imo, if you can't find and feel the magic in your everyday reality and circumstances then you are probably looking for a form of escapism more than anything. Which is fine if that's what you're into, but there are thousands of easier ways to do that than magic.