The idea of a pioneering spirit is probably best described by the term -'adventurous'. That means that you embrace new ideas and experiences and are willing to step outside your comfort zone. I can't answer your second question, sorry.

You could describe yourself as "bold" or "enterprising": you could also say you are "not risk-averse." Be careful of saying that you are not afraid of risk, because it may make you sound a bit too unpredictable or uncontrollable. Saying you are "not risk-averse" means you don't panic in a risky situation, but you don't look for risk, either! The word you used seems to be "media" (you work in media). If you actually report news, then you are a journalist.