Getting married and studying to become an Aalim

Q: For a while now I have been intending to attend a darul-Uloom to study Hifdhz and Alim Studies but people have been feeding me with negative thoughts. I will be turning twenty soon and people discourage me by saying that if I become an Alim then how will I get married while I am studying and how am I going to earn a living when I will only finish my studies when I am 30 and they say that I wont get a job because there are no jobs for Aalims available here is South Africa. Even my own family are against my opinion but I would love to take on Islamic studies and become an Aalim Insha Allah. Is there any advice one could give me?

Taking an interest bearing loan to start a business

Q: I want to start the business with my friend. We live in India. I want to have clarification with following points

1. Can I start a business by taking loan based on interest?

2. If above thing is not possible then is it OK if my partners take loan and I restrain from it?

3. Is it ok if I work in their (my partners firm) which takes loans and take my share of profit as employee?

I wanted to have clarification because in any way the firm in which I am working currently has taken loan from banks for its functioning.

Hair dye

Q: I wanted to color my hair to brown, is it permissible to do so? I read on islamqa.info that it is permissible, but is it really the case?