I'd have probably put this in the "dungeons" forum because that's also where people usually discuss raid mechanics. If you are in A5 and controlling your fairy you aren't really a new player imo.
As far as I know, you can't control the fairy at all while in the gorilla. I think she will heal people while you are in the gorilla (though I've never looked to be sure because I'm, more worried about the bombs), but I know when I try and hit fey wind (on my normal action bar as Shift+G) she won't do it until I get out and tell her again. Not sure if there's a work around but I haven't found one.