Drew Barrymore is one proud mum! On Sept. 26, the 43-year-old actress shared a sweet message for her oldest, Olive Kopelman, to celebrate her sixth birthday, and it'll tug at your heartstrings. In her Instagram caption, Drew described how proud she is of her "treasure." "I love you as big as the universe and to infinity til the end of time. My love is endless and immeasurable. I love being your mom," she wrote. "Could you tell I love ya? Actually the smallest things you do, can mean the most. You are my treasure!"
Drew has said before that she "was put on this planet to be a good woman so [she] could raise good women," and it looks like she's fulfilling that goal (and more) through her daughters, whom she shares with ex Will Kopelman. Check out more snaps of Olive ahead and make sure you read Drew's helpful tips for working mums.