head and shoulders above - clearly superior to someone or something

heart's just not in it - to not something is interesting enough to do it

feel it in my bones - to sense sometihng strongly and intuitively

at the back of my mind - to think or worry about something

face up to reality - to confront something dangerous or unpleasant

two heads are better than one - two or more people have greater chance of succeeding in doing something than single person