And while meditation is good for practicing mindfulness "in slow motion", you don't _need_ to meditate to be mindful.
Yes!! If you wake up and just don't feel like meditating that day, then don't! I view meditation as a tool that helps you reach deep into mindfulness, but meditating to meditate is missing the point. The goal you should have is to be mindful/present in the moment throughout the day.
Mindfulness-based CBT worked really well for myself, coupled with Suboxone which is being investigated as an anti-depressant itself. I haven't had an episode in two and half years, which is the longest stretch of saneness I've had since I was 16.
The evidence for CBT is stronger than for MCBT, although they tend to be used for different people.