he is worried about his future

My Son is 23 and was diagnosed with autism when he was in secondary school.

He moved into his own flat through Covid with help from carers 2 hours a day. They were supposed to get him out of the flat and help him with the day to day things like cleaning teeth and showering, learning to cook etc.  However they just turned up and asked what he wanted to do, he shrugged his shoulders and they left after half hour.

For over a year now he has had no support at all, he literally comes out on a Saturday to go out for tea with me, i work full time so cant be there all the time.  He spends the rest of the time in his flat playing on his Playstation.

I spoke with him a couple of months ago about maybe trying to go back to college and he went to an open day which was overwhelming for him with people he didn't know and very crowded. This situation gives him anxiety, he wants to try do something as he has told me a couple of weeks ago that he is worried about his future and this upset him.

I have tried to see what help he can get but i am not getting anywhere, he used to have a great social worker before covid but them he left and through covid his new social worker made commitments but failed to commit to them. She saw him once in 3 years and kept cancelling, then due to him no longer having carers in due to us paying for them not doing anything she signed him off leaving us with no help at all.

Sorry for the long introduction but i am now at my wits end and hoping somebody on here may have a few answers for me. I hate to see my son so unhappy. He needs to learn life skills and maybe find groups that he can attend slowly to meet others. He likes to know what is happening before he can do anything, not knowing will mean he wont do it.

Thanks to anyone who can give any advice