As someone who was in that position, I dealt with it by saying 'doesn't matter for now'; until you have the habit of noticing positive things in your life, whether they compare favorably to alternatives is besides the point, and by the time you are beginning to acquire the habit, you also begin to calibrate your values better so you know better what exactly you want to label as good.

In short, just aiming for volume of truthful positive statements is enough to start with.