I think you have the basic knowledge about bitcoin and cryptocurrency in general, their are lot's of video on the internet, but not all can be trusted, their are lot's of PDF that you will read that will guide you and you will also get lot's of information on the forum about bitcoin and cryptocurrency in general.
I know some people will have sent you personal messages that they will guide you or help you, they can't be trusted because most of them might have negative mindset to you. Don't trust anybody that will want you to create wallet address or the once that will want to help you buy bitcoin, you have to be careful and don't share your private key with anybody.