This story should serve as a warning and a motivation to move away from iCloud, Google Cloud, and alike for video and photo storage.
The easiest thing is to just purchase a drive or NAS and store your media on it. If you're a bit tech-savvy, you can run your own NextCloud. I run NextCloud on Hetzner, 1TB storage box + web server for a total of $7 a month. Or you can get Hetzner to run the NextCloud for you for about $4.7 a month for 1TB storage, but then you don't have full control over it. Then there are quite nice NextCloud apps for Android and iOS that you can configure to sync your photos and videos into your cloud.
Another LiveView-like UI framework for Python: https://github.com/flet-dev/flet - created specifically for highly interactive real-time experiences. You build your UI from controls made of Flutter widgets and partial UI updates are passed to a browser via WebSockets.
You're largely right, but I think you're underestimating the cognitive deficits that come with ADHD, particularly executive function.
The key to breaking through mental barriers as an ADHD-sufferer is usually not more will-power or less laziness, though one must at least want to change. The key is externalization -- that is, building external cues, props, and guardrails into one's life to help one stay on task in the moment - whether that means doing work or resting. We have trouble doing both proportionately.
Some people say they've had great success taking time every Sunday evening to review the past week and make adjustments -- whether that be putting a post-it note on the computer, installing a browser extension, setting a series of reminders, or any number of innovative ideas. Whatever helps you externalize the decisions you'll need to make in the moment.