Do you divide activities between those that are sinful and those that are not? How do you make the distinction? Is this something that can be reduced to a list? Perhaps that is too strict and too simple at the same time. Is this what you refer to as legalism? Perhaps a better approach would be to evaluate activities by criteria. Does some activity make you more caring and considerate of others, more active and engaged in your own pursuits, and more aware of the Kingdom of God within and around you? You should do more of this. Does it have the opposite effect? You should do less.
Related Resources:How to Hear God's Voice!