Hello
@Chosen7Saint, mine is a similar story to yours actually. I was baptized as an infant and raised in the church (so to speak). I went to Sunday School through 7th grade, sung in the children's choir, was confirmed, went on some retreats (where I remember being led in a sinner's prayer of sorts), and attended regularly through high school, you know, the whole 9 yards. I enjoyed church, but there was no moment during any of those years when I truly admitted to being a lost sinner and turned my life over to God.
In college (and for the balance of my 20's) I turned away from my upbringing in church and began to live a very fun, fast but progressively more sinful life. Nevertheless, I always believed myself a Christian (why wouldn't I have considering my church background), until the day that I finally became one, that is, 2 months after my 30th birthday. That's when EVERYTHING changed (over 37 years ago now, PTL

).
I had a couple of "dark nights of the soul" along the way, one on my 25th birthday, and the second (far more profound) one, just prior to surrendering my life to the Lord Jesus and finally becoming a believer (over Halloween weekend in 1986).
Like you, I believe that we receive the indwelling of the Holy Spirit when God quickens us/causes us to be born again, and justifies/saves us, which I believe all happens pretty much at the same time typically .. except in the case of a blockhead like myself, that is. In my case, I believe that the Father's drawing of us (
John 6:44) is Him quickening us/making us alive (spiritually) so that we can see our sins/sinful lives for what they really are, prior to our coming to saving faith/prior to our receiving the indwelling of the Holy Spirit. See
Ezekiel 36:26-27, John 3:3, 5; Ephesians 2:1-5 (especially v4-5).
So, I understand the terms "quicken", "regenerate" and "born again" to mean basically the same thing, as God bringing us from spiritual death to spiritual life for the very first time in our lives, thus giving us the ability to finally understand and receive the (spiritual) truth about our spiritual condition from God (which we could not do as "natural" men/women ..
1 Corinthians 2:14 .. see below).
As the Lord Jesus said in
John 3:3, you must be
born again to even
see the
Kingdom of God (much less enter into it) so, it seems to me anyway, that being born again or quickened/regenerated must occur prior to coming to saving faith (even if it all happens pretty much at the same time), because into what, exactly, would an unbeliever or "natural" man/women be putting their faith in if God had not already quickened them
That is my 2 cents anyway.
God bless you!!
~Deuteronomy (David)
p.s. - below you can see the differences between believers (who have been made by God into "spiritual" men/women), and the unsaved (who are "natural" men/women).
1 Corinthians 2
12 We have received, not the spirit of the world, but the Spirit who is from God, so that we may know the things freely given to us by God,
13 which things we also speak, not in words taught by human wisdom, but in those taught by the Spirit, combining spiritual thoughts with spiritual words.
14 But a natural man ~does not accept~ the things of the Spirit of God, for they are ~foolishness~ to him; and he ~cannot understand~ them, because they are spiritually appraised.
15 But he who is spiritual appraises all things, yet he himself is appraised by no one.
16 For WHO HAS KNOWN THE MIND OF THE LORD, THAT HE WILL INSTRUCT HIM? But we have the mind of Christ.