You cant earn money with small amount unless your very lucky guy in buying ico's token .. But I recommend atleast $100 this can help you to earn as fast as you can.. My advice is to buy when the price is drop wait to dump to -30% then buy as man as you can .. But dont be hype because it may loss your all capital like what happened to me long long time ago  I loss my $200+ in mooncoin I bought it with the price of 0.00000009 now it doesnt move anymore in 0.000000001