To answer your questions, first of all, you will need to have someone other than your father write your recommendation letters. You can find clients or other professionals that you come in contact with in a professional capacity (other businesses you trade with? customers? consultants?). If it is impossible to find a professional reference at your job, you could look to professionals in your volunteer or extracurricular activities. If you don't have anything yet, I suggest you get involved with an organization (and choose a recommender from this activity). I would not use a college professor. I'm not sure about the requirements for non-US schools, but, this would not be looked upon favorably in the US. You want LORs from people who understand how you perform as a professional and who can comment on your leadership ability and your teamwork, etc. and not just your academic aptitude.

As for your second question, the quality of the school will matter less than how you performed at school (you did well!) and the types of courses you chose (good grades in rigorous classes will be more important than the caliber of school). And, for business school, your work experience will weigh more heavily than if you were applying to graduate school straight out of college (in which case the caliber of school could become more important).

Good luck to you! I hope this helps! On a good note, you are very young have plenty of time to worry about getting the LORs and necessary experience in order. Most people entering business school are about 25 so you have time!