I was a sole foster parent for a 9 yo norwegian girl for a month. Taking responsability for someone elses child is always stressfull. The girl knew me from before and we got along quite well during our staying together.
Barnevernet kept phone contact with me during this time, i could always contact someone from their office or a pdychlogist in case of any problems so i felt safe performing my work then. Luckily there was no need for any of that support.