Basically I really like finance, accounting, and economics. I got to be the CFO of a startup company me and a partner co-founded. I do the budgeting, financial statements, and projections.

We are getting venture capital but I want to learn financial engineering and quant finance now. I want to try making trading algorithms for derivatives and learn to manage risk mathematically as well.

The issue is I only know a bit of python, and even my highschool math needs some practice. Where and how should I start?