Jennette McCurdy Celebrates 1 Year On Best Sellers List: 'Happy First Birthday'

Happy 1st birthday, "I'm Glad My Mom Died."

Jennette McCurdy's first book not only recently turned one but has also stayed on the New York Times Best Sellers List for the entire year!

With a great reason to celebrate, McCurdy shared a carousel of photos on Instagram of a cake that replicated her book, "I'm Glad My Mom Died."

"Happy first birthday IGMMD. Thank you all so much for making this book a NYT bestseller for one entire year. I honestly can’t believe it. I’m grateful every day for the crazy ride this last year has been and for the incredible opportunities that have come from it. It’s thanks to you all ♥️,"her caption reads.

Many of the child actor's fans and friends left well wishes and support in the comment section of her post.

Fellow Nickelodeon child actor Victoria Justice wrote, "You should be so proud 👏🏼🙌🏼💜."

One fan wrote, "Happy first birthday, IGMMD. You should be proud of yourself, JMFM. I know I am, and so are countless other people. You are magnificent; your value/worth can never be calculated."

Another shared, "I know little Jennette is incredibly proud of you and would give you the warmest hug ♡ enjoy the warmth and all the love, you deserve it so much. thank u for kickstarting many healing journeys alongside your own."

Before the book even turned one, McCurdy was labeled a "veteran best seller" because of the book's longevity on the Best Sellers list for 51 weeks.

Many publishers originally declined even reading the book proposal based on the title, but that didn't hinder its success once a publisher was found. The book has stayed on the Best Sellers list for the full year, and McCurdy said she is "honored" for that in an Instagram caption.

She recently spoke to the New York Times about her success as an author.

"Not one person has approached me for being an actor from the TV show they watched when they were little," she told the New York Times. "For the past year, it has 100 percent been being recognized as the author of this book and I am beyond grateful for that. I wish I could describe to you how grateful I am. It literally makes my heart pound."

McCurdy said that she's met so many people over the past year who shared their stories with her and "that’s been a really connecting experience."

The author is currently working on a second book but said she may only keep about 20 percent of the original version when all is said and done.

"Who knows if I’ll ever write the thing if I get caught up in doubt too early. But I do love to bring doubt in when I’m looking over the first draft, figuring out what needs a rewrite and what needs to stay,” she said. “I think there’s a time and a place for the inner critic; I think there’s a place for the guy. The inner critic is a guy, right?"