(((girlofoz))) I don't know how to answer some of those questions. But I've felt the same way. I have a tendency to get really clingy a couple times a month or so, with my bf. I normally can tell its coming on and let him know - that I'm struggling and will probably be clingy. He does his best to be there for me, but can't hold me all day. I try to distract myself by playing games, talking with people online, just reaching out. As for the inner child needing an outer adult, I haven't figured that one out. I try not to rely on my bf too much for that. B/c he's my bf not an adult to take care of me.
Hope some of that helps. Know your not alone.