How can I use a video of me talking and transfer it onto a Metahuman character so that they are now speaking the lines? I'm new to all this : )

Hi all, I want to create short videos for educational purposes and would like to have a Metahuman character to present the content. How can I record myself speaking the content (not using iphone) and then ‘impose/transfer’ it to the Metahuman to speak? I am totally new to this so the easiest way to do this would be great. What do I need to do to create a Metahuman character that enables this process? Are there ready made characters I can use/buy for this process? Many thanks in advance :grinning: