Your DS is doing well to get through his health problems with your support and then a qualification and then hold down a job. At this life stage, it is important that he makes relationships with people of his own age. This is a complex subject. He needs to be going out to local events. Perhaps join a society for his favorite hobby etc. I do not know if you have a second lounge at home and encourage him to bring a friend home. Is he good at social media and able to use it to join in activities?
Rupert Lowe and the “rowers” haha
Reducing contact because my heart just isn't in it.
Is it normal to talk to yourself?
best wishes, hope it work out ok for you all.