Washing the nails in wudhu

Q: I have a problem that disturbs my ibaadat, personal life and family life. This problem is concerning wudhu. In my fingernails, some of the upper nail layer are peeling because I have peeling my nail bed. Must water enter under these peels. I have harmed my nail a lot. Must water reach only the surface of the nail or under (and not the cracks) because my nail (nailbed) is cracked because I harmed it. 

Muslim step father preventing a non-believing father from visiting his child

Q: I have married a woman who has one childern (6 year old girl) with a non believer. The childs father wants to visit his daughter and take her for weekends with him. He is taking her with him to pubs where people are non believers, drinking alcohol and smoking cigarettes. Do I have a right as her stepfather not to allow this visiting, etc.? 

Husband not controlling his gaze

Q: I need some advice. I find my husband does not control his gaze and this really hurts my feelings. If there's a woman, no matter what nationality he HAS to give one quick look. I feel really hurt and hatred towards him. Please advice me what I can read etc at that moment so I can overcome the grief and be rewarded in my difficulty instead.