Venus mahadasha for scorpio lagna

Is venus mahadasha going to be too bad for me. I have venus in second house in its own nakshatra. Also, i am scorpio ascendant.

Generally speaking ...Yes,It should be bad.

But,there are a lot of factors one should consider before coming to a conclusion.The placements and aspects of other grahas,shadbala of venus and its significance in your horoscope.