To show that something belong to someone (possession), use your.
When you are describing what someone is or is doing, use you’re.
Your vs Yours
Your vs Yours: Use the plural your (yours), when you don’t repeat the noun in the sentence.
For example, “Is that car yours?” vs “Is that car your car?”
The above example means the same thing, but the use of plural yours make the sentence shorter, more simplified and avoids having to repeat the noun.
Quik Tip: You vs You’re
When in doubt about whether to use your or you’re, repeat the sentence out loud and substitute the your/you’re in the sentence with “you are. If the sentence makes sense with that substitution, you’re is the correct usage.
Image of man near car: “Image by freepik”
Image of man: “Image by freepik”