My younger sister is lazy and lacks motivation to engage in any productive activities.

She sleeps at 3am every day and wakes up at 2pm or 12pm.
She has no hobbies and has been at home doing almost nothing for the past 2 years.

Now, she is repeating a final year project subject in her degree.
She has completed all her subjects and only has to finish her final year project to graduate.

I asked her to join me for a jog at Hutan Bandar at 6am or 7am, but she refused.

How can someone bring about change in their life?

You are right man

But I worry that after she works in Johor, she will settle down in Johor. She might not go to Singapore to find a job after gaining one year of experience in Johor.