You need to reread Acts about when the Holy Spirit indwells believers. It is not automatic. Some seed falls on rocky ground.
So, then, 16 out of 17?
I think you've quite missed the point of the New Covenant.
Under it, one is not redeemed from sin, eternal death, and the Lake of Fire unless one is regenerated and has become a permanent residence of the Holy Ghost.
That state is conferred by God on the basis of committed, irreversible faith in His Son and Christ, Jesus, as Lord, and in His Blood, having become His tangible possession for ever.
You might want to reread Jesus' words of promise, especially John 10:25-30, 11:25-26, and 14:24-26.
Anyone who is not indwelt by the Holy Spirit is not saved from the wrath of The God.
Are you?
My impression is that your understanding of the parable of the sower and the seed is flawed.
You need to read the epistles that show the HS indwells every believe at the moment of conversion.