Hello,
It seems not logical at all to work as a translator on freelancing platforms and rely only on what you use with Google Translator.
Anyone in this life could, for example, use any translation extension without the need to hire you and this is why this kind of work is rejected on freelancing platforms.
Steps to become a translator:
1 - Buy a copybook and paper
You need to write anything you have learned from the new language you are going to translate it from English. Like for example Deutsch learns the numbers from zero to ten: null, eins, zwei, drei. Or nominativ, geninitiv, akkusativ, dativ or family members.
2 - Choose the platform you are going to learn on:
It could be a free platform like Duolingo or Anton or Khatoo or it could be a Youtube course where you learn it every day on the basis of one lesson a day.
3 - Do online tests to improve your accuracy in a language like Horen, Lessen, A1, B1, C1
4 - Then after that, you are able to translate texts. You know Google or Mate Translate or Bing Translator are AI translators and could have a lot of faults that you did not track.