Help: Guidance to learn how to sell on Amazon

Hi folks,

I am a noob person, new to amazon selling. I need to learn the Seller Central, How to List Product on Amazon, FBA/ FBM, Ads, How to find niche product and every important things to learn as a newbie.

I am just confused from where to start. I have seen so many YouTubers/ Influencers who teach FBA and marketing but I prefer start learning from myself.

If you guys can help me if any simplified way or any site, book or videos shall I follow for learning, that would be very much helpful for me.