I cried a lot while singing, though most often not because of voice training. It's.. cathartic for me at least, not sure it can be for you as well, especially with that background. But it certainly did feel less like "training" for me, just a bit of silly fun.

If singing is not it, reading a book you like out loud (and even intonating different kind of characters talking if you are spicy) is also a thing that I did. Couldn't just do "work", I had to mix fun in.