REALLY wanting someone to understand something, especially when you think it’s for their own benefit, has nothing to do with them getting it. In the end, how much you want them to get it is what may impact them the most and usually puts our (work, family, friend, romantic) partners in defense, reaction and protection.
The willingness of your conversation partner is the most valuable currency there is in relating to each other. Cultivate it wisely and know when it hasn’t been offered to you.
Sometimes there is no in door. Knowing how to love and take care of ourselves when the door we want to be open is closed can be the most valuable currency for our own well-being and finally takes the pressure off the other person to take care of you by letting you in.