“I am Truly Happy For You”
It is mathematically unlikely
that the closest to you are
capable of this statement.
That doesn’t make them bad people. Their personal awareness and capacity just isn’t at a level that can allow it.
My suggestion is to focus on your own clarity and taking steps to remove your own mental baggage. Then you will not seek their acceptance instead you will accept them for where they are at.
Who knows what you will inspire them to do in their own path.