Unity Game Mechanics Tutoring Support

I am looking for someone who can tutor my son to improve his skills in developing a 2D Unity game that he is working on for a project. It will require working with him in real time, chat or online, in the afternoons for an hour or so at a time on random days. We can find times that work for both and set appointments. He can send the game code and send you a list of questions, and you would reply with advice on what he should do to get what he wants. This might then lead to some question and answers back and forward. We really want this to happen in real time so that he is learning. We tried contracting one developer, but they wanted us to send info, then wait half an hour or more to reply to each message. Impossible to teach and engage that way. If you think you could do this job, please contact me. Thank you. Craig