First - unplug that keyboard, find an old t-shirt and cut it up into 4 or 5 pieces, use common dish-soap in large bowl of warm water, pull all of the keyboard buttons off (most will come of fairly easy, and will snap back on fairly easy after cleaning - only a few very cheap keyboards won't allow fairly easy removal.)
If the keys are really dirt encrusted, drop them all in a pan with warm water and soap, let'm soak, clean them one at a time with your piece of old t-shirt - then snap them back into place.
BEFORE YOU START - set down with a piece of paper and draw in little squares a copy of the keyboard layout - before you remove the keys - makes it a lot easier to know where to put the keys back.
If the keys won't come off with firm pressure - dampen your cloth lightly with warm water, mix with bit of common dish soap - make sure it isn't dripping at all, then scrub those keys - use a dull knife to push the cloth down between the keys. This isn't as easy as the other way, but it gets a fair job done that will be a vast improvement.
More later, after I've had a chance to think about your plight.
I've been there too.
If it's of the situational variety, it'll pass on its own, eventually.
If clinical, it'll always be lurking in the background, with some days better than others.
But you probably knew that.
Churchill was afflicted with it .. called it his 'black dog'.
But also proved that it doesn't have to be debilitating.
You're not hiding it, and that's a good thing.
Tell hubby that tomkat says 'grrrrrrr' .. that he should look up 'empathy' AND remember what those vows said.
They're easy to apply when things are hunky-dory, unlike now .. now's when he finds out if he meant them.
((you))
btw, I spent some time at both CU and NU .. small world