My plans

I'm 15. I managed to convince my parents to give me £100 to trade and after a couple weeks it became £250 (I'm still trading) Currently I'm preparing for GCSEs and exams and will go into economics for a levels. After that I'm going to try and apply for a certain finance and risk management course but I have a couple questions: 1. How hard is it to get a job in trading for a bank? 2. How hard is it to get promotions etc. 3. What is the average salary for a bank to pay their traders? It seems to change every time I search it up 4. Is what they teach me in the university course going to be worth it? 5. Do traders in banks also trade on their own if so do they trade like the banks would? 6. How do the banks trade...like is there a certain strategy they use. If so is there anywhere I could learn it to help myself get ahead? Sorry if these questions don't make sense I know what I'm trying to ask but I don't know how to put it into words Any help is appreciated Thanks!