Proven tips for a positive mental attitude

I want to tell you guys about a little TIFF that I got into yesterday with a good friend of mine, we always make plans to hang out, and somehow she always bails at the last minute. We’d make plans for the following month. Well, last night, I lost my temper. I let myself get angry. I had relinquished my power over to my friend and allowed her to somehow get under my skin. And I was upset.