Autistic child – Taurus ketu ascendant-sagittarius moon

Dob: 31-oct-2011 19:12 pm at Bangalore, India
This is my son’s details. he is autistic. our life journey has been a roller coaster journey since we came to know about his challenges.
My question:
1. How can we help him after our life ends.
2. Will he be able to come out of his shell and be independent on his own.
3. What remedies to do?