Controling one's nafs and desires

Q: I wanted to know how to control nafs and I ended up in a site which tells you how to kill it permanently. But I have doubts concerning them. I dont know if it is permissible or not to do this kind of wazifa. The site is www.wazifas.com and I was searching for  http://www.wazifas.com/how-to-kill-your-nafs.php Can you read them and tell me if I can do these wazifa. Even my parents are confused. We have never heard about these things before. if it is not permisssible, can you tell me how to control your nafs and desires?

Syrian topi

Q: I just wanted to know where can I buy the syrian topis, scarfs and shawls from because I have now read wearing a syrian topi is sunnah?

Taking an interest bearing loan

Q: I am a 36 year old man who was born and lived in India for 20 years and moved to North America now. I am married and have 2 children. Now I am thinking about buying a home on bank loan and of course there will be interest involved. Will this stop me performing Hajj? We (wife & I) did our Umra last year (2012) Allhumdulillah.

Hair transplant

Q: Could you please tell me if its permissible in Islam to have a hair transplant as I have a very receding hair line and sometimes feel like I am gradually getting bald and being a woman I really stress over it?

Zakaat on graded Mandela coins

Q: I have a few graded Mandela R5 coins (year 2000 and 2008) that I have acquired. They are legal tender, but because of their demand and rarity, I bought them for a few thousand rands. I purchased them with an investment intention. How do I pay zakaat on them?  The coins have no gold or silver in them.

Competition wherein one is charged a fee

Q: I will be hosting a car show during the course of next month and would like to find out if the proceeds from this event can go to a sponsorship for a hajj fund for people that have been accepted for hajj this year. The funds raised on this day will come from the entrance fee that each person pays to enter their vehicle. At the end of the show, the participants will receive trophies. Please advise me in this regard.