I did some of an Advance Diploma in Science, before transferring to a Biology Major with Physics Minor at University. It wasn't long into the degree that I realised there wasn't a lot of work in that field that interested me, so I transferred over to Teaching. I now have a Bachelors Degree in Education and got work within 2 weeks of finishing my degree.
However, since leaving the field to focus on raising a family, it has become difficult to get work in teaching. I am competing against the fresh out of uni people and even they are not getting work straight away. I've had my name down for work since the beginning of the year and have not had even one call for relief work. I am praying that it is easier next year when my availability opens up a bit more.