You were saying you did not think you could help your husband. I can't say I agree. You go to work and provide finances. That might not seem related to his mental health but it most definitely is. You provide perspective. When depressed it is very easy not to see what needs doing, or judge oneself with clarity.
By making suggestions and setting an example you are showing him what direction to take. You show him love and are a permanent pillar in his life.
Agreeing to return to the UK for his sake is something he should understand is a very wonderful gesture.
All these things are necessary but need him to take an active role in trying to get well. This was not an even thing for me, when really down I was unable to do much at all, but as I improved, even temporarily, I tried, as much from feeling bad about how I treated my family as anything. Hopefully the increased meds and psych will help.
Children tend to have fixed views about how their parents should be, and when they don't seem to come up to scratch can be pretty judgmental. Do you think their assessment is deserved, or do they simply need a little more life experience?
With the uni course I guess one needs to understand each unit is a victory, and having been victorious once one can be again. As I mentioned I studied and often wanted to just give up, fortunately I was successful enough to encourage me to keep going. Is he basically interested in the subject matter?
Perhaps as well there might be something in music he would enjoy?
Keep scraping through Deborahb :)