Blaming taqdeer

Q: I think I have a serious problem in my Iman. I am not clear of certain things and it is really important to clear it. Whenever I face some hardship or insult or Allah punishing me, I feel like it is not my fault because everything is in His hands. The towfiq of making tawba or doing something correct, everything is controlled by Him.

Allah created Nabi (sallallahu alaihi wasallam) in such a way that Jibrail (alaihis salaam) came and cleansed his mubaarak heart. It is obvious that he is the best among us and this all Allah's plan.

An evil person's circumstances are like this that if he does any good deeds then it is from Allah. If Allah doesn't give hime the towfiq to do good then why will Allah punish him? To do good or bad is fate. Can you please explain this?

Female taking care of males and serving them haraam food in a nursing home

Q: Are we allowed to work in a nursing home and serve residents haraam dinner, maybe take a tray of pork meat to the residents for dinner. Can we spoon feed them pork dinners. Can we also change males or help them with nursing. Can you kindly confirm as to whether we are allowed to bath and dress male residents and serve haraam meals to them. Will our wealth be haraam?

Islamic banks

Q: I see many Islamic banks charge everything like other banks, they are just changing the name. So, isn't it haraam to take a loan for a car or anything else from them?

Authentication of a story

Q: I heard a story about a Sahaabiyah named Aslamiya. She was described as a person with medical knowledge learnt from her father and when she asked Nabi (sallallahu alaihi wasallam) if it was permissible for her to treat those in need, Nabi (sallallahu alaihi wasallam) said that it was indeed permissible. It was also stated that she trained a number of other women to do the same. I would just like to verify the authenticity of this story.