Yes. Literally, all of those things.
I was working part time at an engineering services company here. In my 2nd/3rd year of my undergraduate degree. I left to join WorleyParsons an engineering consultancy where I worked till earlier this year.
About two months into my employment at WP, I was successfully accepted into this program:
ADF Education: Defence University Sponsorship - Defence Jobs Australia
I'm still an undergraduate but I was accepted as PhD candidate because of a manuscript I presented to the Dean on mechanism theory.
My supervisor who started his R&D firm, asked me to join. Which I did. As work progressed here, I realised I didn't want the commitment of the 4 years of post-graduate work I would have to do for the RAAF and backed out. I had to repay the scholarship money.
I won't be awarded my PhD until I have received my undergraduate. Technically I'm not officially enrolled in the course. I'm working through an arrangement with the university. Once I graduate from my undergrad. I'll be enrolled and my supervisor will float my PhD. I'll probably officially be a PhD candidate for a few short hours/days.
Yes I'm 21 years old. And I've been working on my research since I was about 18. That is when I began my literature review.
I'm sorry you have so much difficulty coming to terms with all of this.
Oh did I mention I am also an avid fitness enthusiast.