Professional counsellors help clients identify goals and potential solutions to problems which cause emotional turmoil; seek to improve communication and coping skills; strengthen self-esteem; and promote behaviour change and optimal mental health.
Professional counsellors can be found through one of two databases in Australia, ACA the Australian Counselling Association, and PACFA the Psychotherapy and Counselling Federation of Australia.
You can also request of the counsellor what their qualifications and experience are, even query any specialities, such as trauma, abuse, anxiety, relationships, grief, etcetera. Belonging to one of the above associations also means that the association holds the counsellor accountable for maintaining supervision and ongoing professional development. If you are unsure whether your counsellor is qualified or maintains their regular requirements you can check their details on the ARCAP register.
For more information see: How do I know if the counsellor is a professional?

Any subjects or experiences, from an everyday concern to a unique circumstance or situation are suitable for a counselling session. Concerns such as a separation, existential concerns, shame, guilt, or lack of trust - talk to the counsellor you are looking to book with and ask any questions you wish to to help clarify this for you. Counselling addresses concerns across many lifestyle and life stage events and circumstances. See FAQ: What sort of topics or experiences is it ok to talk about in counselling sessions? and Is counselling kept confidential?.
It is important to understand that counselling is not a 'quick fix', in fact it can be very challenging. It is a process of healing and change that often takes time, practice and patience.

I have found that often counselling involves a lot of finding, seeking, and learning 'grace for self'
-- Danielle-Marie, counsellor at Walking Life's Path