What does the Bible say about self-gratification / self-pleasure

What does the Bible say about self-gratification? What does the Bible say about self-pleasure? Are self-gratification and self-pleasure always sinful?

85 Bible Verses about Self Gratification

What does Christianity have to say about self-stimulation? - Quora

Is it ever not a sin to masturbate?

Is Masturbation a Sin? (Yes, the Bible Does Say It Is a Sin

True happiness…is not attained through self-gratification, but through fidelity to a worthy purpose.

85 Bible Verses about Self Gratification

Self Glorification (Matthew 6:1-4) —

How to Develop Self-Control

What Does God Think About Masturbation?

Titus 3:3 Commentary