5. Protective Charms.
Protective charms are very useful they range for (cliché moment but...) True love to simple charms.
a Mothers love is unequalled so when she blocks a cure that could be fatal and she dies it creates a force that can protect you from evil until you become of age!
As I had mentioned learn you protection spells. Like Protago and Expeto Potronum, these could come in handy to give you those few extra seconds!