A contraction is a word formed by pushing two words together. We make the contraction you’re by pushing together you are and taking out the a. The contraction you’re has an apostrophe where the a used to be.
Anytime you use the word you’re, it takes the place of you are.
I hope you’re coming to my party. I hope you are coming to my party.
You’re a good friend! You are a good friend!
Mom said you’re helping at the shelter. Mom said you are helping at the shelter.
The word your is a possessive pronoun. It shows that you own something.
That is your dog. You own the dog.
You dropped your glove. You own the glove.
I enjoyed being at your party last night. You own the party.
You’re with an apostrophe is a contraction of the words you are. The word your has no apostrophe. Your shows possession.