ESV: So I turned about and gave my heart up to despair over all the toil of my labors under the sun,
NIV: So my heart began to despair over all my toilsome labor under the sun.
NASB: Therefore I completely despaired over all the fruit of my labor for which I had labored under the sun.
CSB: So I began to give myself over to despair concerning all my work that I had labored at under the sun.
NLT: So I gave up in despair, questioning the value of all my hard work in this world.
KJV: Therefore I went about to cause my heart to despair of all the labour which I took under the sun.
NKJV: Therefore I turned my heart and despaired of all the labor in which I had toiled under the sun.