Rooted! Finally, I got stuck in so many places by mistake, btw, nice box, learned a lot 
? !
My advice:
keep it simple! Sometimes you just not need fully access to the machine btw, if u want the access, just pacience and cat files, rolf.
Even not need a shell ! (Maybe I solve it by the wrong way ): , if anyone solve it by other method, pm to discuss please :3!)
If you’re stuck in the Aqua portal, try to do the most simpliest thing, maybe you’re trying to access where you dont have to !
(Just erase if any spoiler is in this )
Thanks to everyone who help without spoiler!
If anyone needs help, just pm me !
Cheers !