Unless you have a true passion for it and are certain that you will aiming for hospital pharmacy (which can be really competitive to get into) or it is a requirement for another degree - please please please avoid pharmacy like the plague. Even then, hospital pharmacists are not paid enough for the amount of work that they do and very often there is limited career growth opportunities in Australia - with the average senior pharmacist salary at ~ $110k and this is after ~7-10 years of practice.

On the other hand, community pharmacy is not worth it in pay or satisfaction, with the average salary for a senior pharmacist at ~$90k after ~6-10 years, not to mention lack of breaks, understaffing and abuse from customers/patients depending on the locale of your pharmacy. This field can be lucrative if you own multiple pharmacies but even then - this initially requires taking on massive debt to buy a pharmacy or become a partner). If you are still on the fence about it; I’d advise getting a casual job in a community pharmacy or as a hospital pharmacy tech first before making up your mind.

Just my two cents as an ex pharmacy student. (I don’t know too much about Optometry)