I suggest blocking all platforms that provide short-form video and firmly deciding not to consume such content for a set period of time (e.g., 2 weeks). For me, this is the only way to stop once I fall back into the habit.
Doing this enabled me to spend more time developing and pursuing my own ideas, which is invigorating.
Or even just setting up a timer, I've set up a 20 min timer for myself recently, once it's done I do stick to it, I did get to do some things I've been pushing away, I still get some value out of these but... I get a lot more by not spending an hour on them.