What is the best way to learn Davinci Resolve from scratch?

Hello everyone,
I am new to this forum as well as I'm new to Davinci Resolve. I have edited in Premiere Pro in the past few years, however I have decided that I want to learn Davinci Resolve as well, in depth. I have found some of the certified training courses such as ones at mixinglight.com, rippletraining.com and fxphd.com. However I don't know what's the difference between these different trainings but there is a difference in price. So, which of the certified training courses would you recommend to someone who wants to thoroughly learn Resolve from the scratch?
Also, do I need a high end, color accurate monitor in order to properly complete these trainings?
Thank you all in advance.
I am new to this forum as well as I'm new to Davinci Resolve. I have edited in Premiere Pro in the past few years, however I have decided that I want to learn Davinci Resolve as well, in depth. I have found some of the certified training courses such as ones at mixinglight.com, rippletraining.com and fxphd.com. However I don't know what's the difference between these different trainings but there is a difference in price. So, which of the certified training courses would you recommend to someone who wants to thoroughly learn Resolve from the scratch?
Also, do I need a high end, color accurate monitor in order to properly complete these trainings?
Thank you all in advance.