> saturdays from 16 to 18 is house cleaning time.

> Routine can be used for bad things but also for good things.

So your willpower causes such routines to work. Not everyone works that way. And not everyone not working that way has depression. I don't think one can generalise this to "routines will fix your depression".

> but after some repetitions your mind (and body) begin to get used

I also don't buy into that. A good counter-example is tobacco smokers. Some manage to quit the moment they decide they want to quit, with no substitutes. Others try with substitute and interestingly for many who try, that also works, but for some it does not. And some can barely ever quit smoking. And a lot of this has to do with how their brain works.

Matthew Perry spoke about that with regard to his alcohol addiction. People are different. I personally never started with smoking, for instance, because I never trusted myself to be able to (want to) quit again - so at the least I was consistent in this regard (plus also, because in our youth, so many others started to smoke suddenly, and I always felt it was a very stupid reason to smoke merely because others would do so, even at an early age. Their rationales would not be mine and I failed to see the point in adopting their positions and make them my position).