When you get down to the nitty gritty, there are only two emotions.
Love creates appreciation, joy, happiness, trust, peace and acceptance in the unfolding. Fear creates negativity, control, worry, mistrust of life.
Love is light, love is freedom.
Fear is power. Fear controls.
And we get to choose where we direct our thoughts.
I would do this when I felt fear, it may help…
Feel the fear/doubt/negativity/anger in your solar plexus area, then visualise moving it up to your heart space and then simply let it go out of your body and aura, the energy of love will dissolve that fear as the higher vibration out trumps that lower one. You may need to practice this a few times, but it is well worth doing. (Not to be done whilst driving or operating heavy machinery.)