Mopping a floor with an impure mop

Q:

1. My sister mopped the bathroom that my younger brother used, and the bathroom had pee drops on the floor as my younger brother doesn't exercise caution when it comes to pee drops. Then, not knowing this, I used the same mop and mop bucket with the same used water inside, to mop the whole living room. While the living room was wet, everyone walked all over it, and the wetness transferred everywhere in the house. By the time I learned a few days later that the mop had been used to mop the bathroom, all the wetness had been dried. What should be done in this case?

2. Also, my mother prayed on the living room floor (no prayer mat, just on the floor) many prayers. Does she have to repeat them?

Disowning one's children

Q: I'm a mum and my daughter went to marry a guy behind our backs and it's her second marriage. We were not happy about it but she says that she's very happy. She only told me this yesterday and her father doesn't even know yet and I'm very worried what he's reaction will be. I have disowned her. Have I done the right thing? There two little grandchildren of mine which I have disowned too and it's hurting me very badly. Please advice. 

Can jin control humans?

Q: My question is about jin and aseeb. Can you please guide me on what are the views in Islam regarding jin and aseeb. Specifically, do jins have that much power to control the activities and every thing of humans. I mean, can jins control humans. As people nowadays say that a particular person is effected by jins. 

Taking one's wife back after a talaaq-e-baain

Q: Please advise me. During an argument I said to my wife "we're over" with the intention of divorce. Then two days later I said to her "stop calling me, its over" again with the intention of divorce and then a week later I said to her "you're on your own" with intention of divorce. Then I gave her one written talaq in a letter. So now we find out she is pregnant, can I take her back or not?

Secretly practising Islam

Q: I have accepted Islam by saying the shahadah only. I want to practice Islam completely but I am not able to get in it because my family is against Islam very strictly. If I tell them about it, they will not think twice about killing me. I am not scared of dying, my fear is about this that I have not been able to perform salah and I am unable to do such things which are farz for a Muslim. If I died like this, then Allah will punish me alot, this is the reason, I fear death. I tried to explain to my household that they should abandon idol worship, but they became very angry and I did not tell them further about Islam. I am trying to change them for the last 1 year but nothing has happened till now and I have to go to the temples even though I don't want to go with them to do some Hindu rituals. I have some questions for you:

1. Is it justified to leave the house because of this condition for me?

2. I have heard that any person who says "Subhna Allahu wa Bihamdihi" 100 times a day, all his sins will be forgiven?

3. If I die here accidently, before leaving my family, without completely getting in to Islam, will Allah forgive me?

4. According to you, what should I do at this point in my life?

You are welcome if you want to give me more advices regarding to my life.