Help and recommendations needed: Therapist / Psychologist / Life Coach

I've been going though some tough times. I have a young kid, a post-maternity halted career, a marriage where my husband seems distant and cosmetic. A ton of other family issues. I have been feeling unsettled and have nobody to talk to who will give an unbiased opinion. I know that I don't need a psychiatrist. I understand what that specialisation means. I need help understand the difference between a therapist, psychologist and a life coach. What are their rules? If my situation, which one of the above should I look for? Please do share recommendations of professionals based out of Noida/Delhi. Thank you