That is funny! I have blown up a cauldron or two on occasion...
NB: if you run out of an ingredient, you can either
(a) buy it in Diagon Alley
(b) find it in one of the chapters
If you need help finding stuff in the book, Googling it usually yields results or you can ask here. To paraphrase Dumbledore:
You will find that help will always be given at Hogwarts on FSU to those who ask for it.