I hope I'm not oversimplifying this but you have two choices: to look back or look forward. There's absolutely no doubt that you and your H have to deal with all the concerns and fears you both have. Ultimately, the success or failure of your marriage will come down to which direction you both want to head in and if you can deal with things in a manner consistent with that direction.
Just remember how he responds to your timetables and pressure. Deal with one day at a time. You're in a great spot, mdu. Keep him on that hook.
Me: 31, W: 29 T: 4 M: 2 Kids: 3 (SS: 7, SD: 4, D: 3) Separated, still living together: Nov 2013 Separate bedrooms: Feb 2014 W working away; kids with me: Nov 2014