A positive attitude goes a long way in determining your career as a freelance writer. Don't believe me? Think about how often you have a negative reaction to something work related.
You didn't get that gig and the person who did always gets the good ones.
A negative response: be upset at the person who got it, throw a little hater-party and keep dragging along, knowing full well that same person will get the next gig too.
A positive response: figure out what makes that person so good. What are they doing to get hired? Reach out to that fellow writer, congratulate them and ask for any tips. Most writers are very willing to share tips and even leads, there's enough work out there for all of us.
Your editor sends back your work with tons of changes, you don't even recongnize the article.
A negative response: complain about the editor to anyone who will listen. Give that editor a speech about the "writer's voice," your experience, yada yada yada. Basically, guarantee the editor won't use you again. Good riddance you think...not so fast!
A positive response: look at the critiques objectively, find out what the editor is looking for and give it to her. You will earn yourself a reputation for being great to work with and you learn what the editor likes putting yourself in the position of being their go-to person. If there is something you truly, truly think the editor's wrong about, talking about it rationally, with supporting facts.
A positive attitude may not magically bring gigs to your inbox, but it will affect how well you perform on the ones you already have.
Ever have a negative turn into a positive because of your attitude?