Please help! I am desperate for help for my son.

My son is 23 years old and was diagnosed with Aspergers when he was 18. He left school 7 years ago and has never has a regular job. He is a recluse, has no friends and suffers from terrible anxiety and frustration. He has mild dyspraxia too. He feels his life is a complete disaster and that he has no future. He didn't really get much in the way of qualifications and now whats to get help with all aspects. I have tried numerous times searching the internet but all the advise and support always seems to come back to children or adults with learning difficulties. Has anyone got any knowledge or stories to share with tips on where to get help for him. He hates people and is very angry with the world. I am very worried about his mental health.