Here's a progress report. I made it through the first two days ok... though I fell alseep both times. I'd decided to start with a 5-minute mindfulness session first, to warm up, and then go for happiness.
It was fine, I suppose, but I wasn't as dedicated as I hoped. I had no routine, being in law school orientation and newly moved in, etc.
Then a whole week passed during which I felt guilty about not meditating, instead of actually doing it. Whoops!
Rather than have a sitting-time deficit intimidating me from ever finishing, I've decided to just start over, and this time I have a little routine going, both for it and in general. I also have a proper chair in my room so that I can sit up straight (instead of sitting poorly on a bed and within moments just lying down).
I find the feeling almost overwhelming, during the meditation. So wonderful! I'll detail my methods a bit later when I feel more prepared to explain them. The carry-over affect has been more subtle than it was when I started, say, mindfulness training, and it's coming through in slightly-unexpected ways.
I'll update again in another week or so.