The Harry Potter writer opened up about tough Christmases she's had before.

It's important to remember that Christmas isn't everyone's favourite time of year. For many suffering bereavement, depression or other losses, Christmas can be an extremely trying time of year as everyone is 'supposed' to be happy. J.K. Rowling took to Twitter to remind her followers not to leave the unhappy ones behind this Christmas, as many people find it tough and struggle through the festive season. Recalling the hard times she suffered in the past, Joanne told her fans to keep their eyes open for anyone suffering this season.

I’ve had so many lovely messages wishing me a merry Christmas. Thank you! 1/12

— J.K. Rowling (@jk_rowling) December 24, 2016

I’ve also heard from people who are going through very tough times. These always seem worse at Christmas. 2/12 — J.K. Rowling (@jk_rowling) December 24, 2016

At this time of year, we’re bombarded with images of perfect lives, which bear as little relation to reality as tinsel does to gold. 3/12

— J.K. Rowling (@jk_rowling) December 24, 2016

If you’re lucky enough to be with the people you love, warm and safe, with enough to eat, I’m sure you feel as blessed as I do. 4/12 — J.K. Rowling (@jk_rowling) December 24, 2016

But if your life is currently full of difficulties; if you aren’t where you want to be, either literally or figuratively, 5/12

— J.K. Rowling (@jk_rowling) December 24, 2016

remember that extraordinary transformations are possible. Everything changes. Nothing is forever. 6/12 — J.K. Rowling (@jk_rowling) December 24, 2016

Thinking back to my worst Christmas, I found it hard to believe that my unhappiness would pass. I was truly afraid of the future. 7/12

— J.K. Rowling (@jk_rowling) December 24, 2016

You never know what the future holds. Astonishing reversals of fortune happen every minute. 8/12 — J.K. Rowling (@jk_rowling) December 24, 2016

So if you’re sad, or lonely, or bereaved, or ill, separated from your loved ones or in any other way suffering this Christmas, 9/12

— J.K. Rowling (@jk_rowling) December 24, 2016

I send you love and wish you luck and better times. Millions of us have been where you are now. 10/12 — J.K. Rowling (@jk_rowling) December 24, 2016

Remember, Christmas Day is, in the end, just a day. It isn’t a test or a scorecard of you or your life, so be kind to yourself ❤️ 11/12

— J.K. Rowling (@jk_rowling) December 24, 2016

❄️☃️✨? Merry Christmas! ?✨☃️❄️ — J.K. Rowling (@jk_rowling) December 24, 2016