It can be difficult to say “no” because you are passionate about your work. You see each project’s potential to forward the cause. Also, you want to progress professionally and saying “yes” can seem like the best route.
But the reality is that we can only do so much. So how do you say “no” in a way that doesn’t hurt your career or make you feel guilty? How do you know for sure which requests to say “no” to in the first place?