/sci/ - Science & Math

>Be 25
>Spent my entire life bypassing math because I find it boring and it's not something I could just force memorize
>Never really managed to learn formulas or formal guidelines; I can usually just jury rig anything I need with basic logic.
>Fucked around with credits and classes and managed to avoid mathematics in college
>Graduate in business and computer science; no one has actually ever discovered or cared that I have literally at best a highschool freshman understanding of math
>I'm trying to apply to graduate school, and I'm worried they'll send me to calculus
>I don't want to live the rest of my life having no fucking clue how mathematics is done

Where do I start, /sci/? Brutally honest, I have no idea how to do long division; I simply break long division into sub equations. I have no idea how algebra is done, I just generally understand what outputs should equal what inputs and can work with it from there. I have no concept of the quadratic formula, or what a tangent is.

What is the best fundamental way to learn math from basic arithmetic to calculus? I'm looking to keep this an ongoing project over the next two years.