Firstly, you should be patient to stay at one spot calmly for a long time because it takes a lot of time to translate. You are not suited for a translator if you would like to visit various places, talk with other people, etc. Translator need to concentrate on the writing without communicating with other people while working.
Secondly, a desire to improve yourself is important to be a translator. In order to provide semantic equivalence between source and target language, you need a lot of knowledge about both languages. Therefore, a translator has to keep raising himself.
It is sometimes said that there is no task more complex than translation. (cf. The World of Language) Therefore, I think you need unique characters to become a translator like above ones.

