When I try to do activities like this I work on it from another point of view. I look at my friends and see what good qualities they have. Then I ask myself if I think that they would say that I have those qualities also. I find it easier because I believe and know that they are good qualities that my friends have. Then I don't have to worry about throwing negative things into the mix. But I think that even if negative things get into the mix (or those that are dependent on situation) that is okay. You can go over all of them and why they came up with your T. Good luck.