For kanya lagna people,Guru happens to be the owner of seventh
house.So,there cant be such a stigma.
But such a stigma is there for Kataka(cancer)lagna people,
as Sani happens to be the owner of seventh and eighth houses.
But I see so many cancer lagna people leading happy lives,
as seventh house is compensated with some benefic influence.
You can read the following articles on remedial measures
and practise tapas and remove your pessimistic attitude.