So i started the quest for the companion Piper.

I got her into the city, but then i only got the conversation "a bit busy"

I did some consolecommands (like the noob idiot i am), and now i'm afraid that the piper quest and compaionship is busted

I did the "complete quest" command hoping that she would just appear as a companion, but now i can't talk to her, and i have no quest.

Didn't work to reset the quest either.

is there anyone out there who knows of a way i can get her to my side so to speak?

i'm sort of in a "compleating" mindset, and this just pissed me off

Did you save before you attempted completequest? Go back to that save and do resetquest instead.

Which quest are you talking about?

Did not save before i did that (again beeing the idiot) but i did try the reset quest before i did the compleate quest thingy.

The next quest i had was to find her at her home, but when i got there she was not in the house. i did find her, but all i got was the "a bit busy"

Nevermind.

I think you need to know the number of the quest in order to advance it via console command, but i don't recall off the top of my head. Try to leave for a few days and come back.

i have waited for weeks

So you seriously have NO save before you reached Diamond City? How is that possible?