A life coach is not a therapist. Life coaches focus primarily on the future and how to help you attain your goals, while therapists focus primarily on the past and how to work through deep rooted psychological problems or mental illnesses such as grief and trauma.
Coaching is a curiosity-based asking method where you solve your own problems. The coach is NOT the expert, but rather a change agent in the relationship that helps you get what you really want.
While the two professions overlap, you may want to work with both a counselor and a life coach simultaneously.