Good idea for a thread.
Can you go outside for a short time each day, ideally a walk (or a run if that's your thing!) Even if it's raining being outside always make me feel better.
Exercise (perhaps set a target for something like PP said to have a goal to work towards)
A project in general is a very good idea. I'm going to make some clothes
A weekly "treat" to look forward to, whatever you like, mine is going to be a weekend bubble bath with a magazine and the most £££ bath soak I can afford (Aldi bath foam the rest of the week!)
I always think stuff like this is a lot easier if you have some money to throw at it. (I know money doesn't cure mental health problems but all the above strategies to help with it, bar the fresh air/exercise, cost money sadly eg fabric, bubble bath, nice food, £5 food magazine...)
I'm especially really fretting about shielding (I'm in that category) being reintroduced, and just rates going up generally. It's making me feel very flat and kind of "heavy" The one thing I can't live (happily at least) without is "touch" from DH, even hugging or just kissing in the morning before work. I seriously would prioritise that for my mental health as I will sink too low without it, I know. We just have to be as careful as we can.
This thread is a good idea, thank you for starting it. I'm sure it will help lots of us.