So we accept salvation through Baptism, keeping His Commandments and His Church.
That's contradictory because Roman Catholicism practices infant baptism in which the baby has NO say in what is happening to it.
We've been told time and again that *Once a Catholic, always a Catholic* and that baptism leaves an indelible mark on the soul.
That is forcing it on someone against their will.
Infants are Baptized at the request of parents (who are responsible for all decisions affecting their well being). Parents are responsible to baptize their babies. If they knowingly do not do so, they break God’s covenant in a very serious matter.
Upon reaching the age of reason, children then can choose to receive the following Sacraments including Confession, Eucharist and Confirmation. Individuals can reject these sacraments or chose to leave the active practice of the Catholic faith (like you did)at any time.
The Catechism of the Catholic Church gives us the most important reasons why we must baptize infants:
Born with a fallen human nature and tainted by original sin, children also have need of the new birth in Baptism to be freed from the power of darkness and brought into the realm of the freedom of the children of God, to which all men are called. The sheer gratuitousness of the grace of salvation is particularly manifest in infant baptism. The Church and the parents would deny a child the priceless grace of becoming a child of God were they not to confer Baptism shortly after birth (CCC 1250).
Original sin is a reality from which each and every human person desperately needs to be freed. Biblically speaking, Romans 5:12 is remarkably clear on this point:
Therefore as sin came into the world through one man and death through sin, and so death spread to all men because all men sinned.
Even if nothing else was said in Scripture implying infant baptism, we could conclude it to be necessary just from this simple fact: babies need to have original sin removed from their souls.
https://www.catholic.com/magazine/online-edition/infant-baptism