Sounds like you should quit your day job and become a trader full time. If the market is as easy to beat as you say.

It also sounds like you've been lucky so far. There are many periods over just the last 30 years where the "sure thing" ended up bankrupting people. The hard part is beating the market over the course of your life.

I would caution such reckless confidence. "The more you know, the more you realize you don't know." - if you are looking at a subject like quantitative analysis in stocks and thinking "this isn't so hard", you probably know so little that you think it's easy, but not enough to realize the intricacies of why it's hard.