I have a 17 yr old aspie as well. I have to say that we've managed a lot of his teenage behaviours pretty well because we're both on the autism spectrum ourselves so we know exactly when things are too much for him (because they're too much for us too!). But this is no consolation for other parents unless I go live with your families . We had the time from hell from him when he was younger, though - it was a literal nightmare.
Most of us, including me, are terrible sleepers. Because of sensory issues, the whole world can be an intensely painful experience for many of us: The science shows we can (generally) hear three times more than others and see three times more detail than others, and feel the tiniest changes in texture, heat, cold etc. We end up 'switching off' from communicating with others because we just can't handle any more incoming data from our senses, and we end up angry or hysterical because of the level of pain from all that input, all day and night, all the time. Our brains never learn to switch it off.
Computers are one place we can calm down, because it's so predictable, no eye contact, etc, so many of us use them a heck of a lot.
Learning aspie communication methods can help hugely. We don't use eye contact at all, we explain things very logically to each other, we know to give each other clear time warnings "10 mins to bed time....5 mins to bed time" etc so we can gradually adjust. We know to keep the sensory stuff like smells and textures to a minimum, and it all helps a little.
The touch thing is a huge issue for most of us. I learn through touch and sight, and sensing who's who and what's what through touch is immensely important to me. But if someone touches me unexpectedly, it's like being hit with something because our pain responses are wired up so differently. But we do learn to cope in various ways with the right help and support and adaptations.
So...there's plenty of hope, if people gradually learn to 'tune in' to our worlds and IF we realise ourselves what the sensory problems or communication problems might be. We learn pretty slowly on that stuff and maybe teenagers need to read up on themselves and think "hey, is this true of me?".
Meantime, large cups of virtual tea for all parents who survive an aspie teen...