i need a lady to teach me how to use xamarin

TEACH me how to use Xamarin for the purpose of creating and OCR app. I am having trouble with: 1. Capturing an image to be used for optical character recognition because I don't want the end user to locally save the picture they have taken. 2. I am having troubling implementing Object character recognition along with test highlighting ( in the same way it is done on google Lens) 3. I am having trouble generating a barcode to the users screen. To state again, I wish to build an Object recognition app for both IOS and Android using Xamarin forms. The app must extract text from a temporarily saved (and soon to be deleted) photo, The app must provide an interface for the user to highlight the text that they wish to generate a barcode from, The app must provide support for multi-line text highlighting, The app must use the extracted text to generate a single barcode or multiple barcodes multiple barcodes if the extracted text is more than one line, The app must display the barcodes extracted from the text at a well enough resolution that a barcode scanner can read the generated barcode. Thankyou