What's the best way to earn?

Hi I'm from a 3rd world country and worse than that this country counts me as a heretic and I'm not allowed in many things

I've slowly made a life and made it possible to add 20-30$ monthly investment

I'm looking for all possible ways to earn more or invest smarter Since I have only a few years left I want a fast way to earn 20-40k usd for the next 4 years

Moons have been a great catalyst in my hope for that dream

But I want more possible ways to earn safely

Any task or activities are fine with me