What you think on affects you...

 For as he thinketh in his heart, 

so is he....

  — Proverbs 23:7 (KJV)

What you think on affects and molds who you are and who you become. 

Are you thinking good thoughts?

Or are you thinking negative thoughts?

Human nature wants to think and dwell on the negative but the Bible instructs us to think on these things...

whatsoever things are TRUE, 

.....there's a difference between truth and perceived truth or opinions 

whatsoever things are HONEST, 

.....free from deceit, honorable

whatsoever things are JUST, 

.....righteous, holy

whatsoever things are PURE, 

.....clean, without sin

whatsoever things are LOVELY, 

......friendly,  kind, pleasant 

whatsoever things are OF GOOD REPORT; 

.....good news that is shared with a good intent

if there be any VIRTUE, 

.....doing what is right and avoiding what is wrong

and if there be any PRAISE, 

.....the expression of approval or admiration for someone or something

THINK ON THESE THINGS.

  — Philippians 4:8 (KJV)