Working for a Non-profit can be rewarding and challenging. The article Ashely posted give you a good path to follow. May is suggest you read all you can about the non-profit you want to work for. Know it inside and out. Match your skill with there needs if possible. Then adjust your resume to match there needs form you skill set. Then give it a shot.

I found an [article] (https://www.themuse.com/advice/how-to-break-into-nonprofit-work) I think you might find helpful Annemarie Wallace !