Help me please!

Hey everyone! I've been visiting and reading posts on WSO but now decided to join it eventually. Finance is a fascinating subject for me and wondering how to get my feet on Investment Banking sector. I'm from Nepal (between India and China) where financial market has just emerged and just handful number of merchant banks not even big investment banks are here.

My academic qualification is Master in Business Study in corporate finance called MBS. It is a university graduate degree in Nepal and a proxy for MBA. I said proxy for MBA because we follow same books but MBS is less practical compared to MBA likewise less costly too. Nevertheless, my self-study in finance has never stopped and reading more and more books. I've studied books on Investment Banking like "Vault Career Guide to Investment Banking", "Investment Banking: Valuation, Leveraged Buyouts, and Mergers and Acquisitions" & "Monkey Business(currently reading)" and along with that learning with video tutorials from "wallst-training. com"(not bought but I found it out free on torrent site)

After following WSO I found out that "WallStreetPrep" is more appealing practical course to land on investment banking jobs. So, I am thinking about to purchase this course to develop my skills further and to get legitimate certification. However, does this course(investment of $500) really guarantee my passion to work in I-Banking in countries lets say USA, Australia or UK? Or I have to do CFA or MBA for this?

Please provide some guidelines about this, thank you!