I’m not a believer that our thoughts alone make our lives. That’s way too simple in my view. However, I do believe that how we think about ourselves does have an impact. Sometimes a strong one, and sometimes much more subtly. If internally you feel some desperation to find a partner, and some loathing of being single, others will pick up on that. If you don’t feel passionate about different aspects of your life, that will be fairly obvious to others.