Breaking into Quant. How could I best position/reorient myself into a quant role?

Hello,

I am an current sophomore at a semi-target that has a great finance program and am majoring in finance with a minor in CS. I half-heartedly went through the whole IB recruiting process because all my friends were doing it, but after doing a lot of research and lurking, I really don't see myself as a banker... I feel like personality just wouldn't fit the role and I am more introverted and analytical, can be somewhat rebellious, and most importantly definitely need my sleep to function at a high level.  I recently have been researching potential career paths, and one that has really stood out to me was a potential career as a quant!  Previously, I have been turned off by a quant career path because of the barrier to entry, but the more I read about it the more it intrigues me.  I have been a somewhat strong student in math, and can definitely carry my weight, but sometimes it take me a while to firmly grasp certain concepts (I am a deep thinker and hate taking things at face value).  At first, I was really interested in equity research, but personally, I feel like a lot of their investment criteria reports seem superficial without applying a proper predictive mathematic models.  I feel like a lot of stock trading is based completely on luck, randomness, and being at the right place at the right time...

Growing up as a kid who bought fractions of shares on a kid-friendly trading app, I thought that the WallStreeters beating the S&P every year were geniuses who knew the markets so well that they could predict what was going to happen on a daily basis -- and this perception was really influential for me to pursue a career in finance as a kid who saw all the grandiosity and glamour of high finance.  However, the older I got, and the more I learned about how the markets actually operate, the irrationality, the seemingly ubiquitous nature of overpriced stocks whose price is based on consumer expectations, I started to become resentful of the industry (stock trading).  When reading about the strategies legendary investors like Peter Lynch or Stanley Drunkenmiller used back in the 80s, I feel like a lot of their trading success can be attributed to pure dumb luck rather than being a genius market forecaster.  Like Drunkenmiller's strategy was literally to place bets on a handful of companies and boom his firm makes a fortune.  Same with Lynch, whose strategy literally revolved around picking "10-baggers" (companies that he thought had to potential to increase 10x in the short-term).  I shouldn't be shit talking them or strategies for stock picking because they made results, but I feel like these strategies are incredibly simplistic and they could just as easily got destroyed.  These guys are in the top 0.01% in terms of fund results, but even a guy with a highschool level understanding of a normal distribution can understand that out of all the people in the finance world, someone was bound to have insane returns no matter what strategy they used based on pure chance... (please correct me if I am wrong)

But anyway I digress.  Using mathematics and computer science feels like the closest someone can get to predicting accurately predicting the irrationality of the financial markets using a sound, tangible, foundation for how markets shift based on logic and actual predictive models. This is what had driven me to finance in the first place, and feels really like something I really would actually be interested in as a career.  Additionally, I feel like quantitative analysis and research is a skillset that is useful in any industry (if I ever wanted to leave finance).  

So on to my main point/TLDR, I was wondering that as current sophomore (rising junior), how could I best position myself to work as a quant?  Would I have to get a masters in mathematic finance and take a fifth year in undergrad to complete it?  Computer Science? Data science?  Statistics?  Could you guys give me some insights into your career path and how you ended up as a quant?  Would I need to completely change majors into math? 

Sorry for the long post.  I am eager to hear your thoughts. Thanks!