Addiction

Being way too reliant on something, or doing it too much, possibly impacting other more important activities.

YouTube addiction

Low need to click, low stimulation, long duration of enjoyment, and shorts mess with attention spans, due to the infinite swipe/scroll… And also there is a lot of content to the point that pretty much anyone can be satisfied or even to the point of addiction. Also I hate ads.

Gaming addiction

More user-friendliness and more stimulus than what real life is, with lots of rewards and all the boring things being cut out, like sleeping and eating… Pacing is also much faster in general, and real life doesn’t have much text… and they also have the human pleasure of music and problem-solving… (Some even have online aspects, i.e. connection) Games also have a “higher power” (guidebooks/code/wiki). And then, consequentially, gaming becomes more desirable than its absence…

Human attention's enemy

Yes indeed feelings like wanting to do AI chatting or watch YouTube whilst doing something else seriously completely destroys momentum and time. Biggest enemy of many people, yet psychologically common due to wanting to take breaks.

Overcoming addiction

If craving is due to the environment, change the environment itself such that the craving is harder to do.
The brain should abstain from addictions for a while to reduce the dopamine equilibrium closer to its natural state, and will thus reduce the pain of doing other activities.
The brain can also identify executing the activity itself as a flaw, and replace the urge with something else.
In some cases, complete blockage of the addiction for a duration of time can help overcome it in the end, like website blockers. It will be painful for a while, but the brain would likely adapt to it, and might result in a net gain in productivity. To reduce the motivation of you wanting to game or watch videos, a touch of lowering the pragmatism of fun (lol), you can turn your computer grayscale. Like the vibrancy of life vanishing to the fog in order to reduce the impact on human psychology.