Actually, Grace is simple. Grace is a gift from God offered to all mankind and can only be received through faith.
Grace + Law of Faith = Justification
Unless you are justified, you can’t please God. You cannot go boldly to the Throne of Grace. How can Grace abound if you’re not even justified?
BTW, do you have scriptural references for the different types of Graces you’ve listed?
Like most things of God, both simple AND complex. Depends on how deeply you want to delve. Here is a link to four articles on Grace in the Catholic Encyclopedia:
newadvent.org/cathen/06689a.htm
These may be too complex for quick reading, unless you’re a genius. I have shorter articles that I can cut and paste for you in a separate place, say email, which describe each “type” of Grace I mentioned, in nutshell, easier to digest than the CE articles. Let me know if you’re interested, I’d be happy to type them into an email for you, or a PM.
When I was swimming across the Tiber, back in 1985, the priest asked me what was my thinking on Jesus. I’d jumped into the river from the fundamentalist Protestant shore, and was still in the shallow water. I told him what I still believe today, and what I think is very true. Jesus can be grasped by the simplest of minds as well by the most advanced minds. (Thank Heaven, because mine is among the more simple!) You don’t have to be a theologian to understand God’s love.
At the same time, a genius should never find himself bored, or run out of material, in the deepest examination of Christian theology. That’s what I mean when I say, it depends on how deeply you want to delve. If you’re happy with simple, then take it simple. There’s nothing wrong with that. And for sure, most of us are very, very simple. But if you want a more expansive knowledge, then you have to move away from simple, towards complex. Unfortunately, most Protestant formulae are so oversimplified, they don’t do justice to what they’re trying to describe, IMO. Simple as I am, I need a little more description, and this I find in Catholicism, whose theologians have been chewing on these matters for many centuries.