Good thoughts here......

I think that trust isn't the absence of being hurt. Trust is the relationship, that even when the other person hurts you that they will work through it with you, apoligize, make a committment with you for your wellbeing and work to not hurt you in the future.

And don't forget where trust is first created. The stage of trust/mistrust is the first year of life. If your caregiver responds to your needs, you learn to trust. If not, you learn to mistrust. This is where the journey of trust begins....

The fear part is very interesting. Fear can be a good messenger to keep you safe too. Maybe this is where trusting yourself comes in?