Technical Support Forum

I'm an 82 yo new member, going from writing everything by hand up to now, to finally learning to type a finished piece into a Google document. I don't have any other word processing program on my old Samsung tablet. I so appreciate the prolific explanations on this site, but I just can't figure out how to upload anything. My friends, who want to encourage me, gave me a Premium membership, but they are no more technical than I am. If someone could just help me upload a single item from Google docs, we'd all be eternally grateful! Thanks in advance to any kind soul who can help !