Thank you Mark Hamilton for what I did hear and see

I must admit I am so ashamed of myself. I watched the first part of the meeting and when it said to click on the X Etc. I did that and took a break getting some dinner and a cold drink. When I came back the meeting was gone! I feel so lost for missing the rest of the meeting. Is there any way to go back and view the second half of the meeting? Also, I have searched all over and can’t find the “source code” needed to get into chat with other members. It’s where you type in your email name address, etc. then your source code. What is that? Where is that? Can someone help? Thank you Mark Hamilton for what I did hear and see. I feel very privileged to have you for my mentor.
JoAnna