Just looking at the comments, I can tell you're studying diligently and enjoyably. I feel even more proud that I seem to have been of some help. Also, proceeding while getting feedback through GPT seems like a perfect study method. PMs and POs who utilize AI well can sometimes take things almost to the development stage, and it seems you have accurately grasped the current trend. (These days, it's often the development team that gets frustrated.) Anyway, keep up the great work!!