That is a psychotherapy cliche, but it has a lot of merit to it.
Significant adults in your life have imprinted/caused MOST of the ways you approach love or work. Just think of how vital those adults were to teach you language -- without them you wouldn't be speaking at all; with other adults you would be speaking a completely different language -- it is the same with your emotions, bounadries and limits, beliefs about yourself and others, how to meet your needs and so much more.
So, do not dismiss exploring your relationship with your parents -- it is the foundation for everything else in your life.