To answer your question directly you must accept that Jesus died on the cross for your sins, accept that, they try to live the best Christian life you can. Failure doesn't matter as long as you haven't lost the faith and are still trying.
We will all fail because we are with sin.
Now if you say the words but reject Jesus by not trying to live the life then God doesn't know you, you aren't even trying, it doesn't matter what you meant at the time of your acceptance of salvation. You can't simply be saved then go and do whatever you want.
That was not a direct answer by any stretch .. quite missing the mark .. to the question of following the teachings of Jesus on the subject of Salvation ... a claim in this direction normally requiring some vestage of scriptural support .. as opposed to repetition of denominational dogma .. the meaning of which the adherent has normally thought little about.
For Example -- Jesus gives a Sermon on this subject "how to get through pearly gates" .. 101 - perhaps you have heard of the Sermon on the Mount.... Matt 5-7 .. which opens
Blessed are the Poor in Spirit - for Theirs is the Kingdom of Heaven
nowhere do we find that one must accept that Jesus was a human sacrifice .. the Scapegoat .. in order to get through the gates .. and in fact nowhere does Jesus put the emphasis on belief in him .. and in fact .. quite the reverse .. such that it is not you who is following the Teachings of Jesus .. but in fact doing the Reverse ? .. following man made dogma .. as opossed to heeding the words of Jesus in relation to this subject.
Did you think Lord Sataniel -- a Divinity with God-Like Powers -- the great deceiver and Tester of mankind ... was going to show up with Horns -Red Cape and a Tail ?
Matt 7: 15 “Watch out for false prophets. They come to you in sheep’s clothing, but inwardly they are ferocious wolves. 16 By their fruit you will recognize them. Do people pick grapes from thornbushes, or figs from thistles? 17 Likewise, every good tree bears good fruit, but a bad tree bears bad fruit. 18 A good tree cannot bear bad fruit, and a bad tree cannot bear good fruit. 19 Every tree that does not bear good fruit is cut down and thrown into the fire. 20 Thus, by their fruit you will recognize them.
On the basis of works .. the bad ones recognized .. not going to find any Salvation by Faith formulation in this Sermon.. quite the contrary .. Those with Faith but no works do not make it .. repeated in James 2 .. called the doctrine of Fools "Salvation by Faith Alone" Sola Fide
Not all who call out "Lord Lord" .. make it .. Says the Teacher .. but "
Only those that do the will of my Father who is in Heaven"
Do you understand ? --- This is not about what Fundamentalist Paster Phil .. or Catholic Priest Joe .. or about what Idol Martin Luther has to say .. but What Jesus has to say - in this Sermon .. the subject of which is how to achieve Salvation. and in this sermon .. there is no requirement to believe in Jesus personally .. have faith in his act of self sacrifice .. .. what you are to believe in are the Teachings of Jesus .. that this is the true Path .. the way .. the light. which tell us how to be put right with God
Only those that do the Will of the Father .. which according to Jesus is what ? .. From This Sermon the last paragraph
24 “Therefore everyone who hears these words of mine and puts them into practice is like a wise man who built his house on the rock. 25 The rain came down, the streams rose, and the winds blew and beat against that house; yet it did not fall, because it had its foundation on the rock. 26 But everyone who hears these words of mine and does not put them into practice is like a foolish man who built his house on sand. 27 The rain came down, the streams rose, and the winds blew and beat against that house, and it fell with a great crash.”
One must put the words into practice .. faith alone will do you no good .. "Even Demons believe God is One" James 2