Place to live while working in Rogier

Hi, I am female in her 30s who is relocating to Brussels to work near Rogier metro station. I have been reading about the different districts in Brussels but I still have many doubts on the best areas (for me) to live at.
I would like to live inside the city, but most neighborhoods that are advised seem far away from my work. I would appreciate to live where "there is life" (meaning, restaurants, bars, a gym, things to do and, most importantly, other people) but I would still like to reach my workplace by metro or bike. I am looking to find a balance between pure residential areas for families with small kids and wild places for exchange students where no-one sleeps (not sure there are any). Finally I value safety and I would like to avoid conflictive areas. Also, Flemish seems too complicated for now...
Can anybody provide some advice? Every piece of information or sharing of own experience is very much appreciated. Thanks a lot, Carolina