Finding purpose. Question about Dr.K's advice.

Hello so Dr.K talks in a video about how we don't know what we want because our attention is pulled outside of ourselves and we just get conditioned by external things like social media and then we feel lost. So the way to figure it out is to reach the end of tought by spending time with yourself and getting bored.

The thing i don't understand, is this to be done daily like an hour or in a single long retreat?Also he says meditation helps with this process. Any meditation?