5 days late

I'm 5 days late but I'm scared to test, I'm scared that it's going to be a negative and I know if it is, it will effect me badly as I've been trying for years. My anxiety is all over the place I keep saying I'll wait till its a week but I keep feeling myself panic when I think maybe I'm not pregnant. How has everyone else dealt with this feeling before and if it turned out negative how did you deal with it x