Improveing communication skills is essential, because this is how we live, inform and use forourselves, and become successful. Improving communication skills is essential because this is how we live, inform ourselves, and become successful.

The keys to a powersuccessful communication are clarity, sparinglyconciseness, prepareing the message, and, at the same time, a great nonverbal communication. The keys to successful communication are clarity, conciseness, preparing the message, and, at the same time, great nonverbal communication.

"At the same time" is a bit out of place in the middle of a parallel list

There are a lot of important aspects that should be avoided as well: not trusting yourself, speaking too loudly, don’and not listening to others and the worst for me a. I particularly struggled with weak emotional intelligence. There are a lot of important aspects that should be avoided as well: not trusting yourself, speaking too loudly, and not listening to others. I particularly struggled with weak emotional intelligence.

I'm not sure how emotional intelligence would be related to communication in a foreign lanuage?