When a goal seems daunting, start small. Say you've decided you should cold-call 20 new prospects every day. Great idea . . . but one that also sounds really hard.
Instead, start small. You can call two people a day, right? Sounds easy. That you can do. Then, over time, you'll feel comfortable increasing the number. (Especially as you start to have success.)
Whenever you want to create a new habit, start small so you will actually start, and then stick with it through that tough early period when habits are hard to form.