I AM FAMILIAR WITH THE MATERIAL AND CAN TRANSLATE IT MYSELF.

Resist the temptation to translate yourself. Even if you are fluent in a foreign language, written translations require a specific technique. Statistics show that in 99% of the cases native speakers will recognize a “foreign” sounding text. In many cultures, awkward or sloppy use of the local language is insulting to native speakers, and the damage to your reputation is likely to cost you more than the price of a professional translation.