Can someone kindly translate this for me 'Je n'en crois pas mes yeux.'

Bonjour Andrew, I have noticed that most of your questions are about phrase translation, so to that end, while I do not usually advocate the use of a translation tool, I will make an exception here: https://www.collinsdictionary.com/dictionary/english First and foremost, this is an English-French online dictionary, thesaurus, scrabble game and blog but it also has a translation app that you should be able to use quite nicely to translate simple phrases from English to French and French to English. Collins-Robert also publishes many forms of dictionaries for purchase, I myself have about 3. Now to your question: Je n'en crois pas mes yeux ---> I don't believe my eyes J'espère que mes réponses vous avaient aidé et ce que vous userez bien l'outil de traduction que je vous ai donné. Bonne chance dans vos futures études en français