It seems to me that the MC does everything too quickly, he has just started training, if you give him a few months he will be as lethal as John Wick and as strong as Captain America. The MC already wants to do robberies now, but this is not a game, in a game they can hit you with 20 bullets and you regenerate in a few seconds but here they shoot him and he can die.
Why not spend some time with the family after the heist? Let things cool down,you know? (maybe a vacation to what passes as Hawaii) Then,after a couple of months,which you can do a series of time skips in between getting to know Michael's family, continue the action part of the story. Thanks for the chapter!