Coping with negative thoughts

When you are upset, do a mental check and catch yourself doing that by the upset feeling you are experiencing.  What you focus on amplifies and attracts other like thoughts and if you focus long enough, cirsumstances around you will start to make you feel more upset --- so what do you do?  Cancel the thought, muster your strength to focus on something else.  For me, I focus on asking myself, "why I am feeling this way?"  and from there identify what I want, and I summon every strength and concentration power I have to imagine what I want until I feel better.  I also tell my ego to shut up and remind myself that I am love, I am love, I am love.