Jung’s ideas are mostly (?) out of date, now, which isn’t surprising since he was around so long ago. The problem is, we’ve moved on in leaps and bounds since his time, and we’re still learning about human psychology and coming up with better ways of helping people with psychotherapy and counselling. I would strongly suggest you find someone who does update their knowledge, because it doesn’t sound like your therapist has much insight into your specific issues.
Also, there is an autism spectrum sub forum here you might find useful, in a tangential sort of way? You sound like a caring parent, which absolutely can make a big difference to autistic people.
What your father said to you was disgusting, and (in my opinion) smacks of his own insecurity, among other things. Comments like that are designed to keep someone in a certain “place”, possibly so the other person doesn’t have to confront their own shortcomings or lack of success.