Good to see that your IC and MC are on the same page - and both seem concerned for you - as I think they should be. I should have mentioned earlier that when my STBX and I first went to MC, it was a very similar experience - our MC went out of her way to try and win STBX's trust - though in my case, it was primarily at my expense - finally capped off with MC telling STBX that my issues were what pushed her into having an affair...so...sometimes even the best of intentions can backfire a bit with an MC.
Good idea to get a portable hard drive - they're so much cheaper now - and just a super-convenient way to take your vital information with you anywhere.
I also want to offer some unsolicited thoughts...your M is not the problem...and even if your H offers to address all the issues that you bring up in terms of why you are unhappy with your M - that will not solve the problem...From all that you've written about your H, he has a lot of work to do on himself - and he's unwilling to do that work, then I just can't see how any surface improvements in your M would be lasting.
How is your D doing? Have you decided how to approach the possibility of a move with her? What is your H's relationship with the kids like these days?
Hang in there, SB. But please remember that it can be very hard to leave an emotionally abusive relationship...but it is doable.