You mentioned in conversation that there was no condition except "blaspheming the Holy Spirit" in which you can lose your salvation.
I'd like to orient your thoughts about that :) - and to make sure we are starting from the right place - some Scripture:
Mark 3:29 "whoever blasphemes against the Holy Spirit never has forgiveness, but is guilty of an eternal sin"
Luke 12:10b "the one who blasphemes against the Holy Spirit will not be forgiven"
18For the wrath of God is revealed from heaven against all ungodliness and unrighteousness of men, who by their unrighteousness suppress the truth.
19For what can be known about God is plain to them, because God has shown it to them.
20For his invisible attributes, namely, his eternal power and divine nature, have been clearly perceived, ever since the creation of the world, in the things that have been made. So they are without excuse.
21For although they knew God, they did not honor him as God or give thanks to him, but they became futile in their thinking, and their foolish hearts were darkened.
22 Claiming to be wise, they became fools, 23and exchanged the glory of the immortal God for images resembling mortal man and birds and animals and creeping things.
1 The fool says in his heart, "There is no God."
They are corrupt, they do abominable deeds, there is none who does good.
2The LORD looks down from heaven on the children of man, to see if there are any who understand, who seek after God.
3They have all turned aside; together they have become corrupt; there is none who does good, not even one.
John 14:16-18 (English Standard Version)
16And I will ask the Father, and he will give you another Helper, to be with you forever, 17even the Spirit of truth, whom the world cannot receive, because it neither sees him nor knows him. You know him, for he dwells with you and will be in you.
Bottom line - fallen humanity's default state is to deny truth in blasphemy of the Holy Spirit (the Spirit of Truth) - unless God intervenes and changes a heart of stone to a heart of flesh, we'd all be lost forever.
God's gracious gift of salvific faith - a one time deposit purchased by the blood of Christ - eternally seals us by the Holy Spirit - thus eternally removing us from our blasphemous state.
We can't ever lose our salvation, because it does not belong to us.
Salvation belongs to the LORD; your blessing be on your people!