Jesus states we need faith.
Save= deliver, according to Greek interpretation.
The child of God is delivered many times as he sojourns here in this world.
The reason that you think it is up to you to eternally save (deliver) yourself, is because you are applying all of the salvation (deliverance) scriptures to mean eternal deliverance.
Luke 13:42 - When Jesus healed the blind man, he told him that his faith saved (delivered) him. This is not referring to eternal deliverance.
Eph 2:8- The word "saved" is "that not of ourselves", but is Jesus faithfulness in going to the cross to justify us (Gal 2:16).
2 Tim 3:15 - Paul says Timothy, from his youth has known the scriptures, which was able to make him wise "unto salvation" ( scriptures inform the children of God, how they were delivered eternally on the cross, not how to get eternally delivered) through their faith (belief that they were delivered by Jesus on the cross) which is in Christ Jesus. Eternal deliverance for all of those that his Father gave him was accomplished on the cross, whether they believed it or not.