Holy shit I cant even comprehend how stupid this is. Using the word "like" means its a similie.
Look at this correct usage.
Similie is used like this: He fought like a lion (the like is key)
Metaphor is used like this; He was a lion in the fight
Is English not your first language by any chance?
I admit I do not try an awful lot with grammar but if you actually read it, it makes alot of sense.