A difficult career path, but a worthwhile one. Bravo!
By the way, be careful in selecting the degree program if you seek to be a psychologist. Accreditation in this profession requires a four year qualification yet many degrees (including BA and BSc) are typically three year programs. Thus, to get accreditation with these, you need to perform well enough to get admitted to a fourth year (Honours) program. This is competitive for psychology due to the accreditation requirement. Those who don't get into Honours but want to pursue that career path need to get another year of study, usually by doing either a Graduate Diploma (effectively the equivalent of Honours, but often more expensive) or a Masters degree (often two years of coursework rather than one year). In most areas, departments want Honours students and will welcome any and all who are sufficiently capable... psychology is unusual in having higher demand and so can be more choosy in selecting Honours students. It's something to be aware of.
Also, a personal observation... studying psychology and reading the related literature includes dealing with a lot of statistics. If you have the mathematical ability, choose strong statistics courses. The specialised ones for psychology (particularly those aimed at students coming from arts rather than science) can be less detailed and deep... they are easier, but they don't necessarily prepare you as well. I have read papers in psychology that were of little value because the statistical analysis on which they are based was weak or because the interpretations placed on the evidence were too broad to be reasonable. It depends on what area of psychology you end up pursuing, of course, but I have found that there is a lot published that tries to draw conclusions that aren't justified by the underlying statistics, or where the statistical methods and ill-suited to question being asked and thus don't really help to illuminate an answer. Strength in statistical understanding is a highly desirable / valuable skill for studying psychology, in my opinion.
