Is there, by any chance, a possibility that there's some place where I can write down my RP ideas without everyone else being able to read them, except from the inbox? c:
You can create a group that is set to top secret and requires member application invite and approval! That way only you, and the people whom you may or may not invite, can read what you write down. 
Sanne's suggestion will work. I would personally recommend using the inbox -- you can create a message folder and put all of your own ideas into it, so you can easily find them all again later.
Thank you both very much c:
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