He's probably still settling in, and your routine is not natural for a bird either. Most birds start to settle in for the night around sunset, whilst your boy is up way beyond that. It will take its toll on him as it goes against his inherent nature.
Take a look at this video. It is one of the best videos on parrots I've ever seen, and it will give you a greater understanding of their needs. This isn't a comment on how you are currently caring for your boy. I myself learned a *lot* from this documentary and it renewed my enthusiasm for ensuring my Tao got the best I could give him. I now spend a lot more time with him and he has a plethora of enrichment toys and games we play. Over the additional time I've spent with him, he has picked up numerous phrases. He calls for our dog, my son and my cat. He asks how you are, tells people they are grumpy, silly or a brat. He tells the dog to 'come here', 'get out' or 'f*** off' (that last one wasn't one I wanted him to learn! I didn't realise I said it so often!).
His most treasured sounds, however, are the squeaking of opening and closing doors, the fire alarm and the beeping of the microwave. His first noise was R2D2, after I set it as my SMS tone, and after that he learned the Twitter whistle and the LINE message tone. Expose him to consisten noises, praise, interaction and language, and hopefully once he is settled and bonded with you he will try to interact with you in the way you want. There are no guarantees however; but with the long lifespan and a lot of love and interaction, I think it can help them along.
[ame="https://www.youtube.com/watch?v=9bnVDs2jBGs"]https://www.youtube.com/watch?v=9bnVDs2jBGs[/ame]