Get a class one medical.
Get a PPL. By the time you've done that you will have read enough, experienced enough and met enough people to know if it's for you or not.
The biggest issues will be time and money. Are you employed or self employed? If you can get chunks of time off, you will progress much faster in the US or SA because the weather is better, and it's generally cheaper.
You'll also need plenty of time off to hit the ATPLs, I found it impossible to work and study, so I took a month off for each set of exams.