How do you guys keep doing these “survey” reawrds?

Reallly, i’ve tried to it but it seems risky and most of the time it doesnt even count the entire fucking video i watched. That counts to many sites such as GG..., legends..., etc

The only site i see as profitable is the usertesting, keeping in mind im underage and brazilian. Does anyone have real sites other than usertesting and amazon? I COULD try teaching but as i said, im starting college.