Gurchan, I think that this depend on your thinking and back ground and culture of beliveing such things. I will not say that you are right or wrong because I do not belive in this thing. Even if I say that you are wrong you will not believe because of your strong culture on such things. I study BCom and in this there was statistic subject which I did not understand when I doing graduation, but now after doing trading and doing service, I can now think of this subject and practicle use of statistics.
So I think it is more of statistical distribution of outcome and not astrology. Also as mentioned by senior trader fellows here in before posts, you should do only what is happening good for you. So if Tuesday and Thursday is not good then do not trade. Do some research activity on this day. Also for you after each trading day you will has a break I means, trading on monday, wednesday and friday only so you will has good mental balance and cool mind for trading.
I has also liked this idea to trade with one day break but I will not believe is astrology thing due to personal reasons. I will then check my result with all trading days result.
Thank you and best of luck