Schedule business development time
Whatever is written in your diary today is going to pretty much reflect how you'll invest your time this week.
Dental appointments, client meetings, car servicing, a friend's party. They're all scheduled. They'll all get your attention. They'll get done.
The reality is unless you also build business development activities into your weekly schedule they don't happen.
There are two things you can do immediately to prevent this:
Right now open your diary. Look at your activities for this week. Juggle things so you have specific times scheduled for business development. You can consider 20 - 30% of your week as a reasonable target for this.
Decide and write into your diary the activities you are committed to doing in the time you've blocked out.
If you experience cycles of feast or famine this is a good way to begin breaking out of them. Try it. Let me know how it works out for you.