Cropduster..... Disclaimer is hitting all the questions that you need to think about. Plus you need to think about how you can do the school work to get the degree. Your statement
"I like tearing things apart to see what makes them tick. The who, how, where, what, and why. Figuring out how they work and can I improve them? Make them stronger, lighter, smaller, and so on. This goes for my sports car, my motorcycle, RC car, quad coptor, stuff around the house etc. " reminds me of myself - I followed that into mechanical engineering. - You should also consider what engineering is hot - electrical, robotics, controls, manufacturing and whether you would be up to move to a job.
I have done a lot of years in automotive engineering and some were enjoyable and some years sucked. And engineering jobs typically are salary, you own your tasks and need to take the time to get it done on time, even if you need to crack into more than 40 hours. I have done 8 hour days and then some 16 hour days.
There are still some good companies and some bad ones. So, you need to step back and soul search and decide if you want to put in the work to get there. If you decide "yes" , dont waste any time getting to school, a degree is the minimum to start.
You can PM me if you have any questions....