How to lead a life after salvation?

We must be led by Holy Spirit.
Holy Spirit leads through:
1) Words of God, i.e. Bible
2) Words in fresh, i.e. Jesus Christ

9 How can a young man keep his way pure?
By living according to your word.
10 I seek you with all my heart;
do not let me stray from your commands.
11 I have hidden your word in my heart
that I might not sin against you. Psalm 119 NIV
The guidance of Holy Spirit is like your mother holding your
hand when you first learned how to write.
You must let go and let God guide you.

2because through Christ Jesus the law of the Spirit of life set me free from the law of sin and death.
6The mind of sinful man[e] is death, but the mind controlled by the Spirit is life and peace;
9You, however, are controlled not by the sinful nature but by the Spirit, if the Spirit of God lives in you. And if anyone does not have the Spirit of Christ, he does not belong to Christ.
14because those who are led by the Spirit of God are sons of God. 15For you did not receive a spirit that makes you a slave again to fear, but you received the Spirit of sonship. And by him we cry, "Abba, Father."