Good tips! Gyms are nice and necessary for many types of exercise, but even if stuck in just a room there are many body-weight exercises or matless yoga that can be done.

Fish is healthy when spaced out (to prevent bioaccumulation of heavy metals), but it's really too bad what's happening to acidification of the oceans and oxygen levels dropping. The notion to eat until you feel full is very valid and necessary when dining out, as you can't use methods like eating on smaller plates to aid with portion control and satiety.

Balance is the key, and small, gradual changes that are integrated over a lifetime are more successful than any methods that seek rapid, instant results.