I do not believe in astrology. I did at one time. This is because I was born into a very superstitious family. I used to be a semi professional astrologer and tarot reader. I discovered that the people I was trying to help with it were using it to stop them from moving forward in life.
Later I examined both and discovered that it was all cold reading.
One of the points you need to clarify is the difference between ‘belief’ and ‘Belief’. ‘Belief’ is a far more formalised and structured set of beliefs. This would be something like a belief in a god or astrology. It has more implications to a person’s life than say, believing that yellow is a nice colour.
Another very important aspect of belief is it is not a choice. No one can choose to believe something, it is an outcome of learning. Learning is a fusion of environment and circumstances.
Here is an experiment:
Tomorrow, for just one day, choose to believe (and here I mean really believe not fake) that you are a very different religion. Say, if you are a Christian believe you are an atheist and Visa-a-verse.
We can, however choose to examine our beliefs. That is the action I took when I chose to examine my belief in astrology and tarot. Even that was triggered by events.
I hope this is useful.