Career choices and best way to start myself off

Lately I've been thinking alot about how I want the rest of my life to go or where I truly want to end up. Being 19 going on 20 this july 26th I believe in my opinion now is the time to make real ground on answering my thoughts. Right now I've just started working at les schwab after leaving a car dealership as a Lube,Inspection,Pre delivery vehicle service tech due to issues with their ethics. I don't mind les schwab as they have decent pay rates and great benefits however I don't feel it's the right fit for me and I want to expand my knowledge and skills far past what I can there. I don't have a college background at the moment just a few years experience in workforce and having taken 3 years Autoshop and Metals class in high school of which were advanced and were held to high standards having stuff such as tig welders, stick and mig and also a cnc program, 3d printer the auto shop having over a dozen different complete engines, transmissions, axles and all that were disassembled and rebuilt. I also took a class of collision repair at a different school which i went to half way through the day.

In my mind my goals ultimately are to be like the big dogs and experience all the automotive industry has to offer like the guys on the tv shows (Jeff lutz, David freiburger, etc the real enthusiasts). It may sound cliche to want to do such things but 99% of the people say it but never show the true desire to go out and accomplish. I have the desire I just don't know how to start. This site has alot of people from many different backgrounds that have been through the ropes and know what it takes and I want to know what you people have done to be successful. Let me know your experiences and maybe some knowledge you wish you would've had at my age to help out a millenial that actually wants to do something with their life vs the 99% that bury their heads in the sand and ask for a $15 minimum wage so they can work at mcdonalds for the rest of their lives.