Gratitude Practice
In all honesty, we tend to shy away from this kind of word, but we've discovered it can be a very powerful way to lift your mood. And it's so simple to do and takes up very little time.

All you need to do is write down 3 things you're grateful for everyday.
This can be anything that made you happy, from the appreciation for your significant loved ones, to small daily activities like your first coffee of the day.
As you write and reflect on these, it's good to take a few moments to immerse yourself in these happy feelings.
Practising regularly actually retrains your brain and neural pathways to take your thoughts to return more regularly and easily to this pleasant emotional state.
And we'd recommend treating yourself to a nice notebook, just for this purpose. You can read it back to yourself when you need an extra boost.
Why not try it out for a few weeks and see if it's a good tool for your mental health toolkit?