ntj
Would you say that you have a "passion about flying" (plane crazy ~ as it was once explained to me) and if so, from what age?
If you have not flown in a light aircraft before, a trial flight on a nice day is an important first step. Your reaction to this experience is important.
Then obtain your class one medical.
As to size, this may well be a limiting factor with a number of carriers.
And finally remember ~ a journey of a thousand miles starts with a single step.