I'm not here to offer any sort of informed opinion on the aviation industry, as I am a wannabe myself. I just want to say that Buggington is far from naive, especially for a 17 year old.
He has done far more research into becoming a pilot than nearly anyone who I've met at open days, flight schools and even CTC interview days. He clearly has his head screwed on and should be commended for that, not patronised. He has come to the right place to get info and is carrying out due diligence.
My only advice would be to take things slow and enjoy your life a bit first. You may always regret not living life to the full and seeing the world when you're young. 100k is enough to mean that you won't be enjoying life for quite a long period of time, you will be living to pay bills and that ain't fun. If Uni isn't your thing, don't sweat it, get a factory job, these are well paid and will help you to finance your training whilst allowing you to enjoy your teens and travel a bit. These experiences will help you mature as a person and stand to you in interviews.