As an instructor that has signed off nearly 200 students, take this advice. One thing you need to do BEFORE your parents drop a bunch of money is to get a First Class student pilot medical certificate.
If you can't pass the medical, you can't be an airline pilot. Period.
If you have certain medical issues, many can be resolved but it can take time.
There is also no reason to pay all the money for training up front.
Do yourself a favor and take some lessons while you are in high school. You are old enough to solo now...so now is a good time to see if you even like it.
Many times, local community colleges offer private pilot ground school that you can attend while in high school...and get college credit for it. I did!
Just because you have a pilot fantasy doesn't mean you will be good at it. Some people can't handle motion, for example.
Go to your local flight school and ask for an introductory flight/lesson.
And lastly for god sakes, don't be one of those millennial noobs that think because they showed up they deserve an ATP. This career takes time, sweat, and effort. And turn your damn hat around the right way!
Good luck.