Interest bearing loan

Q: I attend pharmacy school in the United States. It's my first year and as you might know I had to take out a loan because of the tuition. The tuition is extremely high so for the loan I had to take it out on a interest rate. I have taken out 2 loans so far both on interest. I am not doing well in my classes and I am on the verge of failing and getting kicked out. I have been fed up with this and I think it's because my tuition involves interest that's why. I want to leave but I do not know what I would after leaving this school and my parents don't understand; they want me stay here but inside I do not want to. What should I do? Please give me advice.

Hair dye

Q:

1. What is the Shar'ee ruling regarding hair dye? Is it permissible to use?

2. What colours of dye should one use and which colours should one avoid using?

3. Is there any difference in the ruling between men and women?

4. Is it permissible to use hair dye which is non-porous and prevents the water from touching the hair? If one used such dye, will one's wudhu and ghusal be complete?

5. I heard that applying mehndi is a Sunnah. Can a person dye his beard or hair with mehndi and will one receive the reward of the Sunnah if one applies it?

Emulating the kuffaar

Q: What does emulating the kuffaar mean? Is it only confined to clothing or does it also relate to other aspects of one's life? We see the kuffaar driving cars and eating and drinking in plates and cups and we Muslims also do the same. Is this not also emulating the kuffaar in our actions?

Mazi coming out after ghusal

Q:

1. Today after masturbating, mazi kept coming out and even after ghusl I noticed some mazi but before taking ghusl I did urinate and wait. I think mazi was even coming out during ghusl, is my ghusl still valid?

2. In Indian toilet whenever I urinate, during time of washing, I mean when I pour water on my private part it get mix with urine and fall on my underwear, my private part is always soiled with urine because I am mazoor? Do I need to wash my underwear or continue doing wudhu?

3. In Indian toilet when washing private part water splashes back on clothes and feet, is it clean or unclean?