If you don't like your current thought there is no need to judge yourself, just change it for one that makes you feel good ... and the beauty of this method? ... Say you were feeling bad about a specific topic, you don't have to find a way of feeling good about it ... just find a way of feeling good - period!
Change your thought by petting your cat, or admiring a beautiful flower ... whatever makes your heart sing ... it is as easy as that! Change your thoughts and watch the magic start to unfold!