How often does Paul encourage goodness in his personal teaching.?

Well the terms related to goodness occur 113 times in 98 verses in 'The Pauline Epistles' of the KJV

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Good question! The apostle Paul says that “the fruitage of the light consists of every sort of goodness and righteousness and truth.” (Ephesians 5:8, 9) In fact, it was the apostle Paul’s privilege to write more books, or letters, of the Christian Greek Scriptures than anyone else. So we can imagine he set a fine example of goodness to the first-century Christians.

In view of his faithfulness in copying Christ’s example, the apostle Paul could say: “Become imitators of me.” (1Co 4:16; 11:1; Php 3:17) Paul was alert to follow the leading of God’s spirit. (Ac 13:2-5; 16:9, 10) He was no peddler of God’s Word, but spoke out of sincerity. (2Co 2:17)

As an inspired apostle, Paul had authority to command and give orders, and did so (1Co 14:37; 16:1; Col 4:10; 1Th 4:2, 11; compare 1Ti 4:11), but he preferred to appeal to the brothers on the basis of love, entreating them by “the compassions of God” and by “the mildness and kindness of the Christ.” (Ro 12:1; 2Co 6:11-13; 8:8; 10:1; Phm 8, 9) He was gentle and expressed tender affection for them, exhorting and consoling them like a father. (1Th 2:7, 8, 11, 12) While he was entitled to receive material support from the brothers, he chose to work with his hands in order not to be an expensive burden. (Ac 20:33-35; 1Co 9:18; 1Th 2:6, 9) As a result, a close bond of brotherly affection existed between Paul and those to whom he ministered. The overseers of the Ephesus congregation were greatly pained and were moved to tears upon learning that they might see his face no more. (Ac 20:37, 38) Paul was very much concerned about the spiritual welfare of fellow Christians and wanted to do what he could to assist them to make their heavenly calling sure. (Ro 1:11; 15:15, 16; Col 2:1, 2) Constantly he remembered them in his prayers (Ro 1:8, 9; 2Co 13:7; Eph 3:14-19; Php 1:3-5, 9-11; Col 1:3, 9-12; 1Th 1:2, 3; 2Th 1:3) and requested that they also pray for him. (Ro 15:30-32; 2Co 1:11) He drew encouragement from the faith of fellow Christians. (Ro 1:12) On the other hand, Paul was firm for what is right, not hesitating to correct even a fellow apostle when that was necessary for the advancement of the good news.—1Co 5:1-13; Ga 2:11-14.

many times...