Worrying is mostly about the fear of “bad experiences”. However, when you take in this perspective that “bad experiences” are usually just a mirror & opportunity, to face up to the parts in you that need growth, & that eventually it’s unavoidable to face up to your imbalances, then you no longer feel so “protective”, & defensive, about the possibility of having a bad experience. The way to overcome this “mind pattern” of being a worrier, is that you allow yourself to experience the feelings that you are afraid of facing – if you are worried about losing your relationship, then allow the feeling of loss (which may be very painful) until it loses its momentum in you; just be open to experiencing the feeling without trying to find assurances from the outside to assuage it.