You can try this line if you are able to write well and is technically strong. Other than that, you got to love reading.....not story books but journal papers, articles and patent specification.

the timeline you are targeting is very challenging. Infact, I only know one person that is able to achieve that (passing the qualifying exam) in 3 years. Initial years when the system just started out, its easier. Right now, its tough. Go and take a look at the passing rate (in IPOS website) of the exam and you will know why.

Alot of patent agents have Masters or Phds (not uncommon). Other than that, they are also chartered UK or Europe attorney (more exams). Yet these people are still not partners. To be one at 30 is a tall order