The only way to make it as a writer is to learn to write when you least feel like it.
So the next time you don’t feel like writing, view this as an opportunity, not a curse. Here’s a chance to prove you have what it takes. Prove it to yourself. Write anyway.
You can always delete. If you don’t write, there’s nothing you can do with the time you wasted. And nothing you can accomplish by procrastinating is as beneficial as getting words down.
The next time you feel writers’ block coming on, show it you mean business and write your ass off. Pretty soon, it’ll leave you alone.