What college subjects should I focus on if I want to succeed in forex trading?

These will help but is not compulsory but, some may be required if you want to work for a hedge fund, bank or broker:

  • Mathematics including statistics
  • Computer science or programming (software development)
  • Economics
  • Finance
  • Business
  • Accounting
  • Technical, fundamental and quantitative analysis

An amateur trader could benefit from a basic knowledge of psychology because that would enable him to study and understand the influence of biases on his trading. Biases such as recency, information and hindsight bias.

There are many other that could influence the way you act in trading.