Typically, a translation service will charge a higher rate per word if the writing is more complex. These price fluctuations can also depend on the length of writing. If you are translating something along the lines of War and Peace, prepare to see a hefty price tag. So, if you practice...
5-6 years back to not just "go away" (which I do every year - for language maintenance and other reasons) but to actually refrain from working for at least 4 weeks per year. Last year I had 5,5 weeks off (2 at Christmas - 2 in the summer - 10 days in Feb...