Making ghusal in a shower

Q:

1. As most houses have showers in the bathrooms for taking baths. Please advice what will be the way for taking ghusl-e-janaabat with shower.

2. I have hip dislocation from birth due to which I am not able to lift my legs after a certain height. As in most of the offices there isn't a proper place for wuzoo and people doing wozoo in the wash basin also wash their feet in the wash basin. My problem is that I can't lift my legs till the height of the wash basim. What should I do in that case?

Having dislike for someone

Q: I have this housemates that talks about people. She had talked about me and I confirmed it that she did. Since then I dread her completely and never want anything to come between us but we do exchange greetings and if she needs assistance I render it if I can but nothing more. This keeps disturbing me because each day my dislike for her increases. What should I do?

Hazrat Umar (radhiyallahu anhu) differentiating between Muslims and non-Muslims

Q: I want to know about Hazrat Umar's (radhiyallahu anhu) pact which is given in Tafseer Ibn Kathir. It is mentioned that he made some conditions for Zimmis that they should not build any worshipping area and they should wear different clothes, etc. I read that some scholars don't think it is accurate. What is your stance?

Using cannabis oil

Q: Cannabis oil is used to treat cancer. I would like to know if it is permissible to take cannabis oil for medical reasons, namely arthiritis. Consumption of excessive quantities at one go may lead to intoxication however I intend to take very little which will not lead to intoxication.

Going for hajj while paying off a mortgage

Q: I would like to go for hajj and we have enough money for my husband and I to go but we have a house mortgage that we took 7 years ago ( I understand it is not allowed to take interest based mortgage but I was then advised by a local Mufti Saheb in England that as there are no other options and I had been paying rent for so many years it would be permissible as not for business purpose and purpose is to live in the house). I do not have enough money to pay it off but have enough for hajj. It will take me at least another 5 years to pay the mortgage off. Do we need to postpone hajj and pay off the mortgage first or can we go for hajj first?

Leaving the Musjid with the left foot

Q: Is there any hadith with reference which states it is sunnah to enter the Masjid with the right foot and leave the Masjid with the left foot? If there isn't any hadith which states one should leave the Masjid with the left foot, is it permissible and better to leave the Masjid with the right ​foot if one intends to do something good when leaving the Masjid?