Answer:
Need - More important than want because it can become something you need to live and breath.
Want - You just want something for no reason or it doesn't have a better reason than what you need.
Explanation:
Example
Need - I need water or I will die.
Want - I want a 40 in tv to play Fortnite on a bigger screen.
Want
Its like asking your mom "can I have a lollipop because it looks good" and she says no because you don't need it.
Need
Its like asking your mom "can I have socks or underwear because they don't fit or there broken" and she says "yes because you need em obviously or your nasty.