Non-Target Student seeking Advice

Hello WSO,

I am an incoming transfer student at the University of Massachusetts-Lowell where i plan on Majoring in Economics & minoring (or joint majoring in math) with a career goal of working in the investment banking industry as a securities (specializing in Bonds) analyst in FICC or PWM or Consulting

The institution i attended before transferring Umass Lowell was The Massachusetts Maritime Academy where i majored in Emergency Management and attained a GPA of 3.1.

My only Internship was last summer where i interned at Bain Capital LLC. doing Business Continuity/Disaster Recovery in the IT dept.

Also i was wondering if it would be wise to go straight to graduate school to study Mathematical Finance to help secure a job in my desired fields?

Also i should add that i have a family member who is a VP at Goldman Sachs in FICC.

With all of this background info, what advice would you give a rookie chimp to achieve his career goal?

Thank you everyone in advance for the help.