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Given the following post, respond as if you're commenting on Reddit:
human
MATH IN ECONOMICS?

Good day, I'm a freshman taking AB Economics (i really thought this would take less math). 

My first year is proceeding not as I've expected it thanks to our math subjects. Algebra for this year, two calculus for next. Econometrics, Math for Economics, and Statistics are following. The term is ending and I'm planning to self-study mathematics before things take a wrong turn. But studying from scratch would just lead me nowhere. I even saw, from an earlier post I made, that trig is barely used but our subject is Alg + Trig. 

I won't say I'm terrible in math but I also won't say I'm good in it. I'm just pretty average who didn't take calculus during high school (regretting I didn't, thankfully I did during middle).

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So can anyone provide me a grasp of what topics I should focus on?

Here are what I know:

Algebra

Calculus

Statistics

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But these are too broad, tbh. I do know, however that I need to focus in Algebra is Linear Algebra, yet not disregard the others. Also I should learn a lot about matrices. In calculus I'm not really sure but I did see some online videos saying that it'll mostly be about optimization, differentials, and integrals. For statistics, on Linear Regressions. 

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Statistics may be difficult, yet that's the only subs we're allowed to use tools so I really wouldn't focus on that much (still i'm planning to study it). Can anyone provide me the topics I should focus on and focus on the most. Espeically with econometrics and all the scary ones.

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Thank you for the help! I'm falling in love with the program!
gpt
Economics is really wide field. And thus can have plenty of different math applications.

Learning Matrices, statistics and logarithms can help with Econometrics.

Learn to solve problems with Lagrangian methods in Microeconomics. So basically you need to know how to partial derivate different functions.

I'd recommend you to learn how to code with Stata / R. They will later help you out.