I need some help with turning off an obscessive thought/belief that keeps me numblocked and unable to progress

A few years ago I was heavily into Indian(vedic) ASTROLOGY,it got to the point where I feared each day based on what it predicted,I know this will sound illogical,but I DID a free birth chart yasis online and it was accurate on every fine detail.But one sentence stuck out more the all the rest,a sentence which said you will notice how on the endeavors you set out you will not be successful.This particular phrase has haunted and plagued me on a daily basis.Whenever there is a big or small goal I need to acomplish this negative sentence comes into my mind that I will not be successful.It has caused me mental torment and anguish day and night.I have tried using logic,spirituality and even prayer and I just cant turn it off.what should I do?