Just to add to the comments above:
1. Obtain a class one medical as soon as you can.
2. The PPL route is fine and more suitable for the modular route. There is only a small reduction in hours on the integrated route. Make sure that your PPL instructor is experienced and is aware of your aspirations. An option is to stop at about 20 hours flying. Your instructor will know at this point whether you have what it takes.....
3. Whilst the ATO is keen to take your money, you do need a good standard in Maths, Physics, and English to avoid struggling with the EASA exams.
Which HIGHERS are you taking?
4. A significant number of young people are not mature enough until 21 years old to attend an integrated course. There are of course exceptions as mentioned above.