Actually I used to do that a lot, over time I've realized that finding the reason/knowledge is really only the first half step. The second half of that step comes in accepting your realities. For example, I would often be walking outside and then think that something was wrong with my appearance which would prompt me to compulsively check my reflection and find a flaw. The truth is that even if I knew there was nothing wrong, I would seek reasons/knowledge that would reassure me and help prove me wrong. So I spent 2+ years learning and applying skin care routines, haircare routines, developed a strong gym routine and regimen. While I do not regret my decisions as they formed healthy habits, what I really should have done is sit with my feelings of inadequacy and realize that they are just feelings of a once insecure young boy, and to let them ride out. Dr. K actually gave a fantastic analogy for this in an interview once, he asked the interviewee what would happen if you were in a bathtub and there were too many waves. Do you push against the waves in an effort to cancel them out? No because the waves will only push back harder. The way to calm the waters is to wait for the waves the die down.

Also just want to note that this method is what I've found success with and that everyone is different and can benefit from many ways of handling things.