Grammar police here telling you it is NOT cute when you use the wrong form of "your", "there" and "to" past the age of fifteen. Here's a quick and easy cheat sheet for you to keep in your bookmarks so you don't have those passive aggressive grammar police (me) breathing down your tweets and texts.
You're
The apostrophe between "you" and "re" is just a substitute for the "a" that would be there. Think of it as saying "you are".
Your
Shows possession.
There
Describes a location or place.
They're
Once again, that apostrophe is just a placeholder for the missing "a". If you can replace it with "they are", then you're using it correctly.
Their
Shows possession.
*disclaimer* the I does not go before the E even though it is not after C. But, the reacher vs. settler rule is totally a thing.
To
Use "to" as a preposition before a noun or as an infinitive before a verb.
Too
Usually, if you can replace "too" with "also" in a sentence, you are using it correctly. That rule is not always true, though. It is also used to express excessiveness before a verb.
Two
Literally the number "2". The same amount of fingers people give when throwing a peace sign.
Don't even get me started on punctuation and sentence structure.