Set free from what? Being born again makes you a baby believer. Babies are not mature. The only freedom that Jesus came to bring us is a freedom from the power of sin. And babies are not free from that power. So your idea of salvation is a religious one. Being born again is a change in the inner man, a regeneration. But it is without power until we enter INTO Christ.
The Bible speaks of this freedom. But that only comes about by the putting away of the outer man. You need to die in order to live. There is no understanding of this in the modern church since Christianity became a religion rather than an actual empowered spiritual life.
No one is ever out of the reach of God.
We are free to walk in our own power or else to go to God in order to abide in Christ. When we do that we walk as He walked. Otherwise we will succumb to the power of sin in the outer man. In Him is no sin. When we put on Christ we put on His nature.
We are created in the image of God in the inner man. But the outer man is fashioned according to the fallen nature under the corrupting influence of the devil. Being set free is then within ourselves, from our own old natures that sin.
Then we can fly to God to abide with Him in kingdom life. That life is eternal.
It is important to know the difference.
First I do not recognise what you say that being born again makes a person a baby believer. When Paul got saved he immediately began preaching Christ with power.
It is true that he spent many years in the desert before he was called into apostleship. But our whole lives are spent crying for the pure milk of God's word ... that's what we do.
When Jesus healed Bartimeus He said "go thy way thy faith hath made thee whole" and the bible says Bartimeus followed Him in the way.
Jesus set Him FREE but he chose to follow Christ, never-the-less his freedom was absolute and real.
Don't mix up salvation which is a free gift and discipleship which is costly. You don't pay in any way shape or form for salvation, before or after.