Personally, trying hard to think those kind of thoughts during the day was very exhausting and I always felt like I was lying to myself and deluding myself. Plus, I was always getting jealous at other couples so telling myself these things just made me more frustrated because it was a reminder of my own loneliness. Instead, I just allowed the SATS sessions to build up in feeling and over time my mental chatter changed automatically to reflect the new state. And if I felt myself slipping and feeling bad during the day, I'd just find any thought that helped me feel better about the subject, I'd tell myself "It's OK to feel this way, it's just part of the story" and then let it be and let it pass.