score:12
Is it possible? Yes.
I usually budget $1,000 per month wherever I travel. But...
But I use most of the tricks in the book, depending on the country, to keep prices down. Many people won't be comfortable with some or all of the tricks.
If the tricks I listed sound too harsh, consider a shorter time or allow for coming home early if the money runs out. The easiest way to stretch the money is to avoid the most expensive places like Zurich unless you have a relative or friend there.