A psychiatrist can give you medications. She/he is a doctor with specialisation in psychiatry (M.B.B.S., M.D. psych). A counselling psychologist helps you to bring clarity about your issues and provides basic support. She/he is a masters (M.A. or M.Sc.) in psychology or could also be a doctorate of philosophy (PhD) in the same subject. A clinical psychologist specializes in clinical field. Besides being a masters in psychology or a doctorate, she/he could also have completed M. Phil or Professional Diploma in Clinical Psychology (PDCP) enabling her or him to do behaviour assessments for their clients. She/he could also be a doctorate in psychology (Psy. D.). A psychotherapist could be any of these professionals trained in giving therapeutic interventions. You could go to either in reference to what you're seeking. If you're unclear, you could simply go to any psychologist and they can guide you.

Not always. However, if the issue is intense and needs external chemical support, medications maybe prescribed. It also depends on whom you approach for help- a psychiatrist will help with medications, and a psychologist will have other methods to help you out.