It's so very easy to get caught up in a negative frame of mind. One minor thing can throw your whole day out of whack. What I find most amazing, is how much energy it can consume being in that negative state. The negative seems to possess you, your breathing becomes heavier, your heart-rate increases and you have this overwhelming need to "share" this news. If there is no one around to tell, you might start thinking of who you could call to tell, maybe post it on Facebook. It's pretty funny when you think about it and yet, so sad at the same time.
To avoid feeding the "Negative Monster" so it won't come back begging for more, as soon as something happens, that gives you the first telltale sign of any of the above. Immediately say cancel, cancel, cancel to yourself, take some deep breathes and find something good to think about.
You might also want to come up with a keyword or phrase that you know would trigger a happy thought. Maybe your pet's name, or a place you've been on vacation that brought peace to your soul. You could also use the title of a song that makes you feel good. Then concentrate on the words to that song and begin to sing or hum it. It doesn't matter what it is as long as it gets you out of that negative state. I personally like "I Will Survive." It's just one of those empowering songs, imagine breaking up with the negative feelings or The Devil. But you might like a love song to or even a gospel song.
Whatever it is that gets you out of that negative energy and back to a higher vibration the faster you do it the better. Remember each moment and each day you are creating your future, no Negative Monsters allowed.