Can fervent prayers beside the graveyard of my late father remove the wickedness I inherited entirely from me?

No,

Just call out to God and he will answer.

Romans 10:12-13

For there is no difference between Jew and Gentile—the same Lord is Lord of all and richly blesses all who call on him,

For, "Everyone who calls on the name of the Lord will be saved."

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Psalm 116. 1-9

I love the LORD, for he heard my voice;

he heard my cry for mercy.

Because he turned his ear to me,

I will call on him as long as I live.

The cords of death entangled me,

the anguish of the grave [a] came upon me;

I was overcome by trouble and sorrow.

Then I called on the name of the LORD :

"O LORD, save me!"

The LORD is gracious and righteous;

our God is full of compassion.

The LORD protects the simplehearted;

when I was in great need, he saved me.

Be at rest once more, O my soul,

for the LORD has been good to you.

For you, O LORD, have delivered my soul from death,

my eyes from tears,

my feet from stumbling,

That I may walk before the LORD

in the land of the living.