Trader to MBA, Masters, FUll time trader?

Hello Everyone, glad to be here with you all.

I am a Brazilian graduated in Economics, I started college in USA at University of Houston but decided to transfer to my home country in Brazil and graduated here. I've been into trading(retail) all during college, but never became full time or highly profitable, altough I made more then I lost. Mainly options and futures. After graduation I started working as financial advisor(mainly conservative products). Then opened a bussiness in distribution of comercial equipments(restaurants, bars, supermarkets etc), it went well and I got a offer to sell the bussiness recently and I did. Now I am a retail trader but really want a career in trading or investment banking.

My question is, should I go for a top MBA in finance, or a masters in Finance/Economics to get a good trading/IB job? I am studying for the GMAT already.

Greetings.