New- what should I look into when considering stocks or mutal funds?

I just opened an E*Trade account and I'm excited getting started, but really don't know where to start. Where do you get your news/info from? I fear that 99% of finance YouTubers are just grifters trying to get me to buy worthless stock.

Also, what stats I should look into when buying a stock? Heres a link to a detailed stock reportfor referance.