<human>: Provide a brief overview of the text.

Allright, story time: I'm currently in tenth grade, and had to get a new calculator in freshman year. It's a TI-84, and got into Algebra 2. All was going fine until we got to the point where we needed to use graphs, where I instead was using some button on it for which I assumed was correct, however ended up failing the fuck out of everything involving inputting "X" into my calculator that year, and ended up with a C in the class.

Fast forward to next year: I was placed in precalc. Was failing the fuck out of everything, ended up - no joke, getting a 1% on a test. Teacher was like "The fucks up?". Proceed to tutoring, I keep getting problems wrong and have no idea why. Turns out: I've been using some other function button on my calculator the past 2 years, causing me to fail the fuck out of math, realize I am actually good at math, and feel like absolute ass knowing all of those wasted hours I will never get back studying for shit I had no idea how to do.
<bot>: Went through algebra 2 and half of pre-calc before figuring out I was using the wrong input for "x" on my calculator, wasting so many hours and lowering my GPA.