I am not in the car mechanics field as I work in IT but on a daily basis I make these decisions:
- what new thing or skill I want to learn today that will add to my professional profile?
- Is there a task that I can do that is both interesting and also through doing it, I learn something new that will benefit my career (based on my experience anything new that you learn will one day come handy lol)
- From which source I should get my learning material? an actual trainer? an online class on Udemy where I pay a small amount and learn something from a real teacher? or just some professional youtube videos that teach me something for free? In your field these links might help:
Hope this helps!