No big deal, we all have different moods at times.
In my case, my inner-child gets all moody an I have to calm him down.
Sometimes when he's depressed, I try to encourage him to be grateful about something.
Nothing wrong with being moody, actually, life would be absolutely boring without a playmate.
Good thing is, I usually learn something new from it, or get reminded of something I forgot.
Either way, it's only temporary, and I do try to keep in mind that it will all soon pass.
Change can be a good thing, if you grow through, instead of just go through it.
Life is change in progress, when I fight it, I delay the process.
So don't be so hard on yourself, others will do that for you.