each writer's journey is different.
Here are some resources that I've found helpful.
Critique groups
Meeting regularly with other writers to share work and support one another has helped me tremendously. Find your tribe!
Writing organizations
SCBWI - The Society for Children's Book Writers and Illustrators - a national organization with many vibrant regional chapters and major annual conference.
The Authors Guild - advocacy, contract review, continuing education and more.
Other helpers
Pets. No, really-- whether as editors or lap-sitters, my cats X, Y, and Z often contribute to my manuscripts. If only they could type.