Marrying one's foster brother

Q: I really love my cousin and he love me too. We did everything together and I regret that but it’s happened now. He told his mother that he wants to get married to me. But his 2nd mother told him that she gave me milk and to him also. My mother never told me that even my father don’t know about this. Now we really love each other and we can’t leave each other. What to do?

Bad luck

Q: After my coming to my husband's house, his condition is getting bad. He got sick, he became bad looking, his father's business got hampered, his car is getting ruined from many parts. I cursed him many times that he should be destroyed. Is it because of this? Or I am just a bad luck? Because even before, once I went with him somewhere and everything was getting wrong. Should I leave him? Because I want him to be happy. What should I do ? This is not only my negative thinking. This is very clear that bad luck is after him right after our marriage. I can not take it anymore. Is there something like bad luck? Am I a bad luck? 

Islamic education for one's child

Q: A father said that he will admit their child in a madrasah, but the mother said that she will not admit their child in a madrasah. The mother respects Allah and Islam, she also wants the child to know about Islam and she wants to teach the child about Islam by an Islamic teacher. The father and mother then admitted their child in a school (not an Islamic school and not a madrasah) and appointed an Islamic teacher to teach their child how to pray salaah, read Quran, duas, Islamic characters, lifestyle, etc. so that child learns about islam. Is there any sin?

Experiencing a slight discharge after thinking about something

Q: I would like to know if ghusl is fardh on a woman if she has a thought and feels a slight discharge, but doesn't check it because on every ocassion it is seen to be normal discharge, and not mani.

I always experience this during istinja and have checked on many ocassions, but have recently stopped checking because I experience a lot of normal discharge and know it can't be mani. I am still doubtful. Am I ritually impure for not checking this time?