What Do You Call A Mystery Writer Who Can't Keep A Secret? Me.

I got some feedback on my cover and decided to tweak it a little, okay a lot. I would tell you why I had to tweak it, except it would give a little more away about the plot than I am ready to reveal just now, and I'm really bad at keeping secrets so don't ask.
Which is why me writing a mystery series is so hilarious. I mean the whole thing is building a plot where you basically have to keep a secret, but you also have to be fair about it so the reader has a chance of figuring it out. At least that's how I feel about it. Red herrings drive me nuts!
But it's the way I get there which would probably make my fellow writers cringe.
From what I've researched, apparently I am supposed to have outlined this whole thing out. I should know every book in the series and how it's all going to end up. But I don't. So any speculation on my readers part would be useless, so don't try.
I have tried to do outlines, really I have, but during the course of writing my plots always seem to stray very far away from them so I gave it up. I drop and replace characters, the storyline changes, not being able to leave the cover alone...it goes on and on. In the end it somehow it all comes together and the progression of the series makes sense. Which is why I know that God has given me The Reboot Series to write. But why am I getting it in pieces I wondered. Well God did reveal that part to me just recently.
It's because I would tell everyone about it ahead of time! Which would be bad for a mystery book and not be so good sales. Like I said, I'm lousy a keeping secrets.
I can't wait to see how this whole thing turns out.