In my opinion there are many ways you can gain it and more of it in one day, Focus on the target of 40$ a day. What is your skill to give ? what language do you speak ? your knowledge about cryptocurrency?

There are factory that you will gain it . You should only forcus on target , you surely get it . Then you got target , you will think 40$  that is too small , you can get more and much .
My brother token 9-12 months to learn crypto currency ICO and trading .Currently she  gain more money every days and have a little risk for trading .
I think you should learn how to earn money for long time , avoid gambling game that will not help you grow up .
There are some my opinion , you can consult this . LUCKY