Investment banking and finance

gave an interview at JP, couldnt get selected, thought i need to be trained first. went to this institute - imarticus learning and met Jasjeet Kaur mam. She came across as very experiecned and suggested me a course which could help me with a job in an investment bank. i dont know too many people who have done this course. please help decide, i am very worried about my career. 

I am also looking for a course for investment banking, checked their courses, couldn't understand much so I will talk to my brother who is in HSBC to help. Will keep you posted if I get some more info on this.