You've heard it before--even here. You aren't a writer if you don't schedule time to write. You are only a hobbyist. Just by scheduling the time, you are labeling yourself as a writer. Your writing is important enough to you that you will put aside everything else in your life and commit to it.
Even if you're busy, you can still schedule time. In fact, it's when you are busiest that you SHOULD schedule time. That isn't to say, you need to set aside eight hours a day to write in order to be considered serious. If you only have 30 minutes a day, then schedule 30 minutes a day. Whatever you can fit in, schedule for yourself.
And just as important, treat your scheduled time as you would any other appointment. Keep it! Arrive on time, stick to writing, and end on time. Don't do laundry or run errands during that time because those things are piling up too. You can always get to them later. If you keep putting off the writing, you will never get to it. And if you don't care, then why should an editor?