Sounds like great teamwork on the jetski issue. Good work letting H take the lead on the kitchen floor too! You ARE making good progress!
I know that it seems difficult when you have it all in front of you. You want to dash in, make the fix and make everything wonderful again. I'm going to advise patience - again. JMHO, but I also think if you reread some of your last few posts over the last 2 weeks you will see that H is making some pretty significant progress - in spite of not seeing a Dr. for possible depression.
It would seem to be a razor's edge walk for you now. H needs a little space to go into his "cave" for his own space and sanity. But if you let him go too far, for too long; H could slip further into depression and move farther away emotionally from you and your family.
I know this is a tough battle for you Shay, but you have to be the strong one now; even though you may be saying "wait a minute, I'm just getting on my own two feet here myself!" Don't be afraid to rely on yourself, you're stronger than you think. Look at how you took action when the jetski was sinking. You can do it!
Keep the good things going. Set yourself some new goals. If you can, help H to see a Dr. without pushing or prodding or pressuring - try to make it his idea.
Take a few minutes to assess your great progress. Pat yourself on the back a few times for a PMA boost, then get back in there and keep slugging away!