By the way, who decreed that turtles are lazy? They walk through life the way that turtles are designed to walk through life by God and nature.
You and your family may wish that turtles would move like Cheetahs but that would be contrary to how they were designed.
Are you even aware of how perjorative your attitude about her is? I certainly hope you refrain from communicating this to her.
Your Q is basically asking how you can teach her to NOT be herself. If God designed her to be like a turtle, why is that so bad?
Do you honestly think that there is an animal behaviorist on the entire planet who could successfully “teach” a turtle to be a Cheetah. Or to teach a turtle to be “spontaneous” like a Rhesus monkey and grab everything in sight?
My best answer to your question would be:
Stop trying to change her and just let her be her natural self. If she decides she wants to be more spontaneous she can sign up for improv courses or audition for The Groundlings.
She may decide to be a scientist or a cancer researcher (some of the most meticulous and least spontaneous folks you’ll ever encounter). Where would this world be without the less spontaneous people who have the patience necessary for the meticulous jobs that would drive most people up the wall :)
It takes all kinds to make a world.
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I was typing all of the above while you were posting your most recent comments.
Since she appears to be an adult rather than a child, I guess my advice stands. There are acting improv classes people can take. But from your description, it sounds to me as if she doesn’t want to change that badly.
That’s how I would interpret your comment about only wanting it a little.
I also wonder if that “little” is due mostly to pressure from you and the rest of the family.
If this is really making her unhappy in her life, then perhaps a short course of therapy may help.
But the motivation for any of this should be internal (coming from within her) rather than external (from you or the family) or there is little chance for much success.
SHE can change if SHE truly wants to. You cannot change her.