Massallah pertaining to Kufr

Yesterday I went in the shower at my parents. It took me approximately half an hour to adjust the water temperature as it was either too hot or too cold. I became so angry that I said “f****** hell, I got a problem of OCD as it is so why don’t you sort the f****** boiler out.” My best recollection is that this statement was made in frustration at my parents but a part of it may have been directed to Allah, i.e. Thinking why is he testing me like this when I am trying so hard. Would this be kufr?