sneaking and apathy

My son 16 year old son has a huge problem with deceiving, lying, and it seems like he is living two lives. He lives one way at home, go to church with us, follow our family values,but then when we start checking up on his phone or media accounts we find what seems to be a second reality he lives. He is extremely concerned with his "social credit" wants to be popular. we purchased a GABB phone for him to make sure access to internet and inappropriate content etc. was limited. But when we looked his phone messages with him with some of the group chats he had formed, we were shocked at his conversations with his friends from his church group that used swearing and sexual innuendos and tearing down of each other. We took the phone away, he gets it back, then something like that happens again, we looked through his phone messagesand found bullying a friend. We took the phone away. So, when I was talking with my older son at college had said "oh yeah, he posts on instagram and we chat all the time". First, we have said NO Instagram accounts and when we ask he claims he had to have one for school his psycology class to post things about …whatever, some story he makes up, and we realized he can access this through his school computer when away from home and has all kinds of conversations with people via instagram. He had a text where he said he was being signed as an elite athlete with one college, had full scholarships offered to him by several prestigous univerisites. He is in 10th grade! We also found a conversation where he told a friend in a few weeks he was flying out to his graduation in May and even told his friend when he was landing at the airport and leaving. We were shocked. He doesn't seem to care about family values or vision, because he just will say what we want to hear, and then go live his second life. He does the same thing with his part-time job and spending money all the time when it is supposed to be saved for college. We check his account and money is and when spent every day and we ask for what, he makes up stories. He is on the spectrum, has RAD, he was abandoned as an infant, we adopted him, he has a hard time hugging us, he was an FAS baby too. We absolutely can never believe anything he says. He says he hates coming home from school because of so many corrections he has to have when he gets home, because he can't seem to organize himself and will literally just ignore "understood" chores. I am weary of harping and correcting.