Vous avez cherché: you don't have to be alone, you're not alone (Anglais - Latin)

you don't have to buy water, do you?
num aqua tibi emenda est?

you don't have to be a taxi driver right now.
cras non nisl ornare augue dignissim egestas non at enim

you don't have to know what you're doing, you just have to look like you know what you're doing
operari smarter, ne durius

the truth is like a lion; you don't have to defend it let it loose; it will defend itself meaning latin translation
veritas leoni similis est; non tibi solvat, defendat; se defendet interpretationem latinam