Don’t trust Christianity, trust Christ.
If your hope is in a system, your success will be measured by your ability to adhere to the codes and rules of that system. If your hope is in a Person, your success will depend on the strength and power of that Person.
Jesus saves you, through your faith, which is a gift from God. Jesus is our Warrior-King, who will not let any of his own be snatched from his hand. Look at him. Trust him.
Don’t trust Christianity, trust Christ. Don’t put faith in faith, put faith in Christ.