What you are doing is "self-limiting" which is not very effective. The devil on your shoulder will always fight this - "don't tell me what to do!"
The wanting to not doom-scroll should be intrinsic. I know that right now, for obvious reasons, it's easier said than done.
Choice and opportunity-cost is all "self-limiting", the only difference is perspective. It's better to have an additive-mindset, i.e. replace a habit with another that provides value rather than merely focusing on restricting something. This works for everything, including diet. In the words of Allan Carr, if you view your actions as sacrifice, you won't succeed.