Might as well tell my story.
I went to an engineering school. THEN I discovered skydiving, four years after graduating. I started doing it obsessively. Even moved to California to be closer to good skydiving. At one point I tallied up the year and realized I had made $26,000 skydiving - and that was just weekends and some Fridays. I could quit my job! Live the dream! Skydive every day and get paid for it!
I didn't do it. And I am very glad I didn't. I know a lot of friends who went that route, and very few are happy today. The ones who are happy were the best of the best - you've heard a few of their names. The others eventually burned out, or their bodies would wear out, or they'd get themselves injured and be unable to work. And at that point they would try to re-enter the workforce, missing years or decades of schooling/experience. (Or they'd die, which happened all too often.)
Instead I kept my job and remained a weekend skydiver. And during that time I did a half dozen four way teams, eight eight way teams, and did video for ~20 teams at local competitions and Nationals. I set three world records. And when one of those world records involved traveling to Thailand for two and a half weeks I could afford it, because I was still working a full time job.
Now I am mostly doing tunnel because of family, but I am doing it as often as I want to with no worries about how I will pay for it. And when I skydive, again I don't have to worry about money.
That's not for everyone. You may be one of those amazing natural skydivers who can get ten years of experience and then make a decent living coaching, or instruction/video, or stunt work, or even running a gear store or a DZ. But if you're not sure, it's a LOT better (IMO) to have the education/experience to choose your job (a well paying one that gives you plenty of time off) and then make skydiving your weekend obsession than try to make skydiving an occupation. If you try that angle and fail/burn out at skydiving (and it happens) you are still in good shape.