Astrological energies are more like a ship's sail that rotates wherever the wind is blowing. If you let the winds sail you across the sea then you'll go where the winds will take you. However if you decide to take control and move the sail yourself, you'll go where you want to go. This is basically how astrology in our lives and the planets work.
A lot of things that happen in your life are due to your correlation with certain planetary energies and their positions, but you can of course still control your own 'fate' if you know how to. Many mages knew how to do workings to counter negative effects of planetary positions and to change their energies to work in their favour. We Spiritual Satanists can do this as well.
The great thing about planetary positions is we can predict where they'll be in the future and what effects they'll have. We can majorly use this to our advantage to counteract any negative future events or to empower a positive aspect.
Your personal choices are entirely yours in the moment, the planets can't necessarily stop you from doing something or make you do something, they simply define a general baseline of how things will work or turn out in the very general sense.