Kaley Cuoco spent her 30th birthday at a wildlife sanctuary
Credit: Gary Miller/Getty

Kaley Cuoco is beginning her 30s with a Big Bang.

The actress celebrated her birthday Monday with a trip to an animal sanctuary run by the Black Jaguar White Tiger foundation, and she reflected on the ups and downs of the past year in a poignant Instagram post after.

“Today was the best birthday I have ever had … Thank you for all the love and best wishes .. My heart is overwhelmed with joy and complete contentment,” she captioned a photo of herself standing on a mountain, overlooking the scenic sanctuary. “There have been a few bumps along the way, but thank you God, nothing I can’t handle.”

Cuoco went on to thank her girlfriends (“my precious little angels”) and declare that “30 is gonna rock” with a hashtag.

In September, she filed for divorce from tennis player Ryan Sweeting after just 21 months of marriage.

The star made a big stride in her fresh start last week, getting a new tattoo to cover up the ink commemorating her wedding date.