Hello /biz/, Today I come here looking for some advices and/or

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Hello /biz/,
Today I come here looking for some advices and/or tips

I am in college and my teacher offered us in this "project" called Bourstad. It's pretty much a simulator for investing in companies and buying actions following stockhouse's numbers. You start off with 200 000$ (not real money) and have 2 months to make as much money as possible.

I've never invested in companies before but I take big interest on it. But I am not sure if what I am doing I am doing it right. So this is what I've invested in do far:

>50k on goldcorp inc.
>50k royal bank
>25k dollarama
>25k bombardier B
>50k barrick gold

Did I make good choices investing on those?
What did I do wrong or right?
What should I look in a company to be able to invest on it?

Thanks in advance.