My choice of career path was not so obvious. As a child, I wanted to become a doctor, so in high school, I attended a class with a biological and chemical profile. Nevertheless, I have always loved mathematics, but I could not combine it with, for example, biology and a passion for medicine. In the meantime, I discovered that I was also very interested in technology and engineering topics, and my favourite subject suddenly became .... physics. How to get out of such broad interests and what to decide on? The answer was simple - environmental engineering. This field of study combined biology, chemistry, mathematics and physics into one. The practical exercises in the laboratory were always the most interesting for me - that was what I found myself in and it was easy for me. Later, during my master's studies, I conducted laboratory research on waste management and then I realized that I would like to continue it in my doctoral studies. Thus I became a PhD in Environmental Engineering. During my doctoral studies, I participated in many different programs for doctoral students, popularized science and collaborated with children and schoolchildren, which I continue to this day. On my way, I have met many wise people who guided, mentored and taught me, and who contributed greatly to my success.