Advice needed - Laying it bare

Hello everyone,

I graduated from Non - Target School with an Economics degree and 3.35 GPA. I worked 40 hrs a week at an internship while going to school full time and earning my degree. At that time, I didn't know what I wanted to do. All I wanted was, to ensure I had a job upon graduation, which I managed to do. I graduated in Dec of 2016 and have been working for the same company in operations team since then. It's at one of the top custodian banks (if that helps - doubtful). I've learned quite a bit and past several months, work has become less stimulating, because I am not learning anything new. Ultimately, I want to work in investment banking and earn my MBA. So I am at a crossroad now. I am reaching an age where everything I do has to be thoughtful, I feel like, because if one wrong decision, and it might look like I waited too long. I am 24 now. I recently applied for a job, for a financial management position, and have been given a tentative offer, pending a couple of paperwork and background check. So, I will be leaving this current company soon. The perk of this new job, aside from something new, is that they will pay for my graduate degree. Here is where I need the advice. Should I pursue a MsF first and have that paid for and try Investment banking upon graduation - because I have to work and go to school if they are to pay for it- and mind you, it will not be top 10 schools? I feel, getting into IB will still be tough, so I plan on going in for MBA as well. So my basic thinking is getting this MsF will allow me to get a clean slate where, I can do well, have my education paid for, and it will be from target school when I apply for IB job and MBA. Does this sound like too much or is this something I will need to do to end up in Investment banking? Any thoughts, suggestions, advice goes without saying, is much appreciated.

Thanks in advance for reading this through.