My experience is like Buds, I still get bad days but they're not as frequent or as bad as they were. I do have to be careful I don't do too much physical or mental work or I can't settle when it's time to go to bed. I agree regarding the winter months and lack of sunlight having a negative effect though. I think it's good to try and get an easy day once in a while where you can be on your own and chill.