It's really easy to grow, just hassle feeding it more and more milk as it gets bigger and bigger!
You can throw/give bits away as it grows though.
What flavours? I only ever had plain in Russia. What I really miss is flavoured tvorog though, with bits of fruit or chocolate in.
Mind sounds like a good bet - you could also try your local hospital to see if they want volunteers to come in and keep company for some of the longer term patients.
My mice are mostly well - Violet has cancer sadly, but she's in good shape otherwise, and I'm hoping she'll stay that way for a while yet.
Maybe try and think back to the reasons why you started it in the first place? Or if there's one aspect of it that you still enjoy, focus on that for a while and your enthusiasm might come back.
On skype if you want some company.