What is the most important thing in any professional sphere right now?
Knowledge? Hard Skills? Experience? Degree?

Nope, nope, nope, and nope!
Yes, you got it right: the most desirable skill for any career path is Communicative Skills.
You need to be patient, responsive, responsible, emotionally flexible, and think critically but never be judgemental.
But what if you need communicative skills in a foreign language? For instance, in English?

In this case, you need to communicate with your teacher in a foreign language every single day, step by step improving your grammar and vocabulary, listening and speaking, writing and reading, and of course, your pronunciation. In this case, you need to be able to respond quickly, rephrase and paraphrase, translate on the spot, never use any dictionaries, be able to foresee any question and answer, be able to manage awkward situations which may happen during your communication with foreigners, native speakers, and your tutor. Step by step you recycle all the things you need: every day you learn, repeat and use new words and new grammar chunks, every day you are ready to challenge yourself and push yourself to keep moving forward.

Your emotional intelligence and critical thinking keep developing day after day, your grammar and vocabulary can impress anybody around yourself and soon you become a brilliant, absolutely fluent and self-confident English speaker. Isn’t it splendid, huh?