Once I went into the actual clinical literature of many various kinds of Cognitive Behavioral Therapy I saw significant improvement in the way how I live my life and how often procrastination encounters me.
The reason why they helped by gaining a very nuanced understanding of how the mind works. This allowed to identify the patterns from a point of understanding and self-compassion ("Ah, see, this is what they meant with perpetuation").
However, that is not enough. You also need constant awareness of these patterns in order to change them. Something that you learn in Mindfulness courses and train with meditative practices and journaling.
So, if I may present a simple equation: Go to the doctor.