You mean when does mayhem start ?! Girls are not as prone to 'teenager' behaviour as boys. Especially if they are the sole Basenji in the household.
You could indeed be over the worst, but remember always to be the alpha of the pack. Basenjis are pack animals and need a leader, in this case, YOU. Keep a sense of humour and be prepared to compromise, often on her terms, and you will be fine.
You don't want her to become too staid either ! Basenjis are like Chinese meals, you will soon want another one - but sadly at the moment in this country, getting a playmate is not easy. There are so few available litters.
Send me a picture for the database - she will definitely be on it as a registered B - so you can have fun exploring her ancestry.
Just email me a .jpg named with the registered name of the gal and I will add it.