Which is exactly what the Catholic church teaches.
It is NOT.
The Catholic church teaches that you must be baptized. But that isn't enough, because you have to live a certain way and do certain works, and enough of them. But even that isn't enough because then you need to go to confession and then communion, you know, the *must eat His flesh and drink His blood to have life in you*.
But even that's not enough. There's always more hoops to jump through and most goalposts moved.
And if you die with some kind of venial sin in your life, you get an extended stint in purgatory.But if it's a MORTAL sin, it's hell for you buddy.
No Catholic ever has the assurance that they are going to heaven, they expect to find out when they get there.
No, the Catholic church even pronounces anathemas from the Council of Trent against those who believe in justification by faith alone.
Check your church laws that were established at Trent.
Canon 9. If anyone says that the sinner is justified by faith alone, meaning that nothing else is required to cooperate in order to obtain the grace of justification, and that it is not in any way necessary that he be prepared and disposed by the action of his own will, let him be anathema.
A couple more laws that you might want to consider:
Canon 19. If anyone says that nothing besides faith is commanded in the Gospel, that other things are indifferent, neither commanded nor forbidden, but free; or that the ten commandments in no way pertain to Christians, let him be anathema.
Canon 24. If anyone says that the justice received is not preserved and also not increased before God through good works, but that those works are merely the fruits and signs of justification obtained, but not the cause of its increase, let him be anathema.
Canon 27. If anyone says that there is no mortal sin except that of unbelief, or that grace once received is not lost through any other sin however grievous and enormous except by that of unbelief, let him be anathema.