And I do work and persist so that by doing so I finally do have more ... many more ... days that I feel positive rather than negative. I have lapses, but I get on top of them much faster these days. Thanks be to God!
One way I do so is by reading, immersing myself in, and infusing myself with the help found in books on positive thinking or living life well. I don't let myself go too many weeks without reading or rereading some such book. Because it takes time and work and the Grace of God to reprogram our thinking.
We don't dare listen to ourselves if we aren't telling ourselves healthy words, thoughts, and concepts. Until we are (and afterward, for maintenance), we must feed ourselves healthy, edifying, beneficial words written by others (the absolute best words to feed on being the Word, of course).
This book by John Mason: Believe You Can, the Power of a Positive Attitude, is good medicine that goes down quickly and easily. It is line after line of rational, practical, and wise advice, quotes, and axioms. It was published in 2004, but I just recently purchased it from a grocery store book rack. It has replenished the fighting spirit within me to continue to strive to hold a positive outlook on life. I'm adding it to my "keepers" so that I can enjoy it again at a later date. (As always, let's run anything we read through the God-filter.)
Since you have accepted Christ Jesus as Lord,
live in union with him.
With God's help,