Thanks To/ Thanks For/ Thankful for

The first is generally used during a speech and other indirect communication while the second is used when talking directly to the person you’d like to thank.

THANKS TO: You say “thanks to” about someone you wish to thank. 

Example: “Thanks to John for watching my cat while I was out of town."

THANKS FOR: You say “thanks for” when something makes you grateful. 

Example: “Thanks for watching my cat, John, and thanks for buying all the cat food, Mary.”

WHAT ARE YOU THANKFUL FOR ?

I'm thankful for.....my health.