Having a personal tutor can accelerate the learning process dramatically. Even if you can teach yourself, you can learn faster if someone just tells you the answer. But, you can also just do it. And, the process will teach you the benefits of being precise with your searches and that if you know to use the work "toggle" rather than "switch back and forth", you'll get to the answer faster next time (though, you'll get to it both ways and you'll learn a lot while you're reading).
I was fortunate enough to have great engineers accelerate my learning but I also did a lot on my own and that process gave me a deeper understanding and taught me the right mindset to now continue improving on my own forever.