A Piece of the Puzzle

I am realizing that my biggest battle in life is the battle with myself. I fight harder with me than anyone else. To explain I should say it doesn't have to do with self-esteem or self hatred or anything of that nature.
I struggle the most with the battle of my own emotions. I wish I was one of those people that was just consistent. I wish I woke every morning ready to face the day and that I didn't feel up one day and down the next. I refuse to be lead by my emotions otherwise I wouldn't battle so hard. I don't want my day, or the way I speak to my family or my productivity at work to be determined by how I feel in that moment.
I want to be like Paul in Philippians 4:11...
"I am not saying this because I am in need, for I have learned to be content whatever the circumstance"
I guess that it is the struggle. Contenment. I don't mean that I am not thankful or grateful for what I have. I just mean that there has always been a restlessness inside me. I want to feel settled. I don't want to feel anxious, especially when there isn't really anything to be anxious about.
I have been meditating on Scriptures and I do believe that helps, but I can't help but feel like I am still missing a piece of the puzzle.