I'm Cancer and I'm moody and always have been. And I'm sure that it's probably one of the reasons why I've also always been a misfit, including in my own family, because one sad thing I've learned is that many people (including my own Mother) just can't tolerate what they cannot understand. I'm so blessed to have close faithful friends who know me, moods and all, and know that there's so much more beauty and depth to me that the "mood of the moment".

One thing I can say with certainty is that my moodiness is rarely rooted in jealousy, nor do I tend to hold grudges. Everyone's different. My own moodiness is more often rooted in dealing with and healing from extensive verbal/emotional abuse and so many devastating losses over a very short period of time.

I have not yet evolved to the level of being able to control my feelings (which feed the moods) before I feel them. What I have learned to control is what to do with those feelings to lessen their impact on other people, which unfortunately, has often translated into social hibernation, which then snowballs into a whole other set of problems to deal with. And what I've also learned the hard way is that the more you squelch true feelings, the more apt they are to leak out in other ways, which can be far more damaging in the long run.

It's been said here before many times, that often it's the people we find hardest to love who need our love the most. I would dare to say that that could be true of the moody people I know...I know for certain that it's true for me.

Learning to cope with and manage one's quirks and idiosyncracies is a lifelong process. You can bet that most moody people know they're moody and wish they could turn it off and/or turn on the magic light switch to make it all go away. I haven't found the light switch yet, but am still searching.
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When you don't like a thing, change it.
If you can't change it, change the way you think about it.

(Maya Angelou)