Have you ever encountered someone who never seems happy? Of course, it's hard to know what life has thrown at a person. Happiness is different for everyone. Sometimes, it takes very little to bring a smile to your face. Your expression is the first thing a stranger notices about you.
What has this got to do with writing? Have you ever walked by an author's table at a signing party and they looked like every second there is pure misery? Yes, it is tiring and a lot of work. If no one is walking up to you, this is the perfect time to ask your friends for help and suggestions. Even though your expression is simple exhaustion, it may come across as irritation. A smile, works wonders.
When you get to a point where you are struggling in your writing and want to throw the whole thing out a window and take up bungee jumping, it's time to call your friends and break out the wine, chocolate and pep talks.
I may whine or complain that writing is hard. Duh! But it is something that makes me happy. Most of the time. Hopefully, I can support my fellow writers and best buds when their characters refuse to obey or the plot is going nowhere.
My friends always bring me joy. They also have no trouble telling me when to shape up, get busy and stop goofing off.